Tetrahydrofuran

Formula: C₄H₈O
Molecular weight: 72.1057
IUPAC Standard InChI: InChI=1S/C4H8O/c1-2-4-5-3-1/h1-4H2
IUPAC Standard InChIKey: WYURNTSHIVDZCO-UHFFFAOYSA-N
CAS Registry Number: 109-99-9
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript.
Other names: Furan, tetrahydro-; Butane α,δ-oxide; Butane, 1,4-epoxy-; Cyclotetramethylene oxide; Furanidine; Oxacyclopentane; Oxolane; Tetramethylene oxide; THF; Hydrofuran; Tetrahydrofuraan; Tetrahydrofuranne; Tetraidrofurano; NCI-C60560; Rcra waste number U213; UN 2056; Diethylene oxide; Dynasolve 150; Tetrahydrofurane; THF (tetrahydrofuran); NSC 57858
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Information on this page:
Other data available:
- IR Spectrum
- UV/Visible spectrum
Data at other public NIST sites:
- Gas Phase Kinetics Database
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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_gas	-184.2 ± 0.71	kJ/mol	Cm	Pell and Pilcher, 1965	ALS
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_gas	-2533.2 ± 0.67	kJ/mol	Cm	Pell and Pilcher, 1965	Corresponding Δ_fHº_gas = -184.2 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity	Value	Units	Method	Reference	Comment
S°_gas	301.7 ± 1.7	J/mol*K	N/A	Clegg G.A., 1968	Other third-law entropy values at 298.15 K evaluated from calorimetric data are 299.1 J/molK [ Chao J., 1986] and 288(1) J/molK [ Lebedev B.V., 1978].; GT

Constant pressure heat capacity of gas

C_p,gas (J/mol*K)	Temperature (K)	Reference	Comment
38.32	50.	Dorofeeva O.V., 1992	p=1 bar. Selected thermodynamic functions agree well with results of other statistical calculations [ Scott D.W., 1970, Chao J., 1986].; GT
40.34	100.
44.64	150.
52.15	200.
69.51	273.15
76.6 ± 1.0	298.15
77.18	300.
107.07	400.
134.43	500.
157.48	600.
176.67	700.
192.76	800.
206.36	900.
217.92	1000.
227.78	1100.
236.22	1200.
243.47	1300.
249.71	1400.
255.11	1500.

Constant pressure heat capacity of gas

C_p,gas (J/mol*K)	Temperature (K)	Reference	Comment
85.13 ± 0.17	328.15	Hossenlopp I.A., 1981	GT
91.36 ± 0.18	349.15
106.12 ± 0.21	399.15
120.39 ± 0.24	449.15
133.68 ± 0.27	500.15

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_liquid	-2505.8 ± 2.1	kJ/mol	Ccb	Cass, Fletcher, et al., 1958	Reanalyzed by Cox and Pilcher, 1970, Original value = -2505. ± 2. kJ/mol; Corresponding Δ_fHº_liquid = -211.5 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δ_cH°_liquid	-2501.2 ± 0.84	kJ/mol	Ccb	Skuratov, Strepikheev, et al., 1957	Reanalyzed by Cox and Pilcher, 1970, Original value = -2502. ± 0.4 kJ/mol; Combustion at 293 K; Corresponding Δ_fHº_liquid = -216.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity	Value	Units	Method	Reference	Comment
S°_liquid	203.8	J/mol*K	N/A	Lebedev, Lityagov, et al., 1979	DH
S°_liquid	203.9	J/mol*K	N/A	Lebedev, Rabinovich, et al., 1978	DH
S°_liquid	203.9	J/mol*K	N/A	Lebedev and Lityagov, 1977	DH

Constant pressure heat capacity of liquid

C_p,liquid (J/mol*K)	Temperature (K)	Reference	Comment
124.1	298.15	Costas and Patterson, 1985	T = 283.15, 298.15, 313.15 K.; DH
124.1	298.15	Costas and Patterson, 1985, 2	DH
122.92	298.15	Inglese, Castagnolo, et al., 1981	DH
123.56	298.15	Kiyohara, D'Arcy, et al., 1979	DH
123.9	298.15	Lebedev, Rabinovich, et al., 1978	T = 8 to 322 K.; DH
123.9	298.15	Lebedev and Lityagov, 1977	T = 5 to 400 K.; DH
120.	298.15	Bonner and Cerutti, 1976	DH
120.5	298.	Conti, Gianni, et al., 1976	DH

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes

Data compiled as indicated in comments:
DH - Eugene S. Domalski and Elizabeth D. Hearing
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity	Value	Units	Method	Reference	Comment
T_boil	339. ± 1.	K	AVG	N/A	Average of 16 out of 17 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
T_fus	165.1	K	N/A	Hayduk, Laudie, et al., 1973	Uncertainty assigned by TRC = 0.5 K; TRC
T_fus	164.15	K	N/A	Brooks and Pilcher, 1959	Uncertainty assigned by TRC = 1. K; TRC
T_fus	164.63	K	N/A	Boord, Greenlee, et al., 1946	Uncertainty assigned by TRC = 0.2 K; TRC
T_fus	164.05	K	N/A	Dolliver, Gresham, et al., 1938	Uncertainty assigned by TRC = 0.4 K; TRC
Quantity	Value	Units	Method	Reference	Comment
T_triple	164.76	K	N/A	Wilhoit, Chao, et al., 1985	Uncertainty assigned by TRC = 0.05 K; TRC
T_triple	164.76	K	N/A	Lebedev, Lityagov, et al., 1979	Uncertainty assigned by TRC = 0.02 K; TRC
T_triple	164.76	K	N/A	Lebedev, Rabinovich, et al., 1978, 2	Uncertainty assigned by TRC = 0.02 K; TRC
Quantity	Value	Units	Method	Reference	Comment
T_c	540.2	K	N/A	Majer and Svoboda, 1985
T_c	540.1	K	N/A	Cheng, McCoubrey, et al., 1962	Uncertainty assigned by TRC = 0.3 K; Visual (5-cm 2-mm bore tubes) in nitrate-nitrite bath, TE or TH cal. vs NPL thermometer.; TRC
T_c	541.	K	N/A	Kobe, Ravicz, et al., 1956	Uncertainty assigned by TRC = 1.5 K; TRC
Quantity	Value	Units	Method	Reference	Comment
P_c	51.90	bar	N/A	Kobe, Ravicz, et al., 1956	Uncertainty assigned by TRC = 0.5066 bar; TRC
Quantity	Value	Units	Method	Reference	Comment
V_c	0.225	l/mol	N/A	Kobe, Ravicz, et al., 1956	Uncertainty assigned by TRC = 0.003 l/mol; TRC
Quantity	Value	Units	Method	Reference	Comment
Δ_vapH°	32.16	kJ/mol	N/A	Majer and Svoboda, 1985
Δ_vapH°	32.	kJ/mol	C	Hossenlopp and Scott, 1981	AC
Δ_vapH°	32.9	kJ/mol	N/A	Moiseev and Antonova, 1970	Based on data from 224. to 360. K.; AC
Δ_vapH°	32.	kJ/mol	V	Cass, Fletcher, et al., 1958	ALS

Enthalpy of vaporization

Δ_vapH (kJ/mol)	Temperature (K)	Method	Reference	Comment
29.81	339.1	N/A	Majer and Svoboda, 1985
32.3	305.	N/A	Loras, Aucejo, et al., 2001	Based on data from 290. to 339. K.; AC
33.1	288.	A	Stephenson and Malanowski, 1987	Based on data from 273. to 339. K.; AC
29.	414.	A	Stephenson and Malanowski, 1987	Based on data from 399. to 479. K.; AC
29.6	482.	A	Stephenson and Malanowski, 1987	Based on data from 467. to 541. K.; AC
32.5 ± 0.2	288.	N/A	Borisov and Chugunova, 1976	Based on data from 235. to 340. K.; AC
30.8	320.	N/A	Rivenq, 1975	Based on data from 302. to 339. K.; AC
32.8	288.	N/A	Koizumi and Ouchi, 1970	Based on data from 273. to 308. K. See also Boublik, Fried, et al., 1984.; AC
31.9	311.	N/A	Scott D.W., 1970	Based on data from 296. to 373. K. See also Boublik, Fried, et al., 1984.; AC
33.	293.	V	Skuratov, Strepikheev, et al., 1957	Combustion at 293 K; ALS
31.8	313.	N/A	Klages and Möhler, 1948	Based on data from 293. to 313. K. See also Cass, Fletcher, et al., 1958, 2.; AC

Enthalpy of vaporization

Δ_vapH = A exp(-βT_r) (1 − T_r)^β
Δ_vapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
T_r = reduced temperature (T / T_c)

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Temperature (K)	A (kJ/mol)	β	T_c (K)	Reference	Comment
302. to 339.	46.11	0.2699	540.2	Majer and Svoboda, 1985

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)

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Temperature (K)	A	B	C	Reference	Comment
296.29 to 372.8	4.12118	1202.942	-46.818	Scott D.W., 1970	Coefficents calculated by NIST from author's data.

Enthalpy of fusion

Δ_fusH (kJ/mol)	Temperature (K)	Reference	Comment
8.540	164.76	Lebedev, Rabinovich, et al., 1978	DH
8.540	164.76	Lebedev and Lityagov, 1977	DH
8.54	164.8	Acree, 1991	AC

Entropy of fusion

Δ_fusS (J/mol*K)	Temperature (K)	Reference	Comment
51.8	164.76	Lebedev, Rabinovich, et al., 1978	DH
51.83	164.76	Lebedev and Lityagov, 1977	DH

Enthalpy of phase transition

ΔH_trs (kJ/mol)	Temperature (K)	Initial Phase	Final Phase	Reference	Comment
8.540	164.76	crystaline, I	liquid	Lebedev, Lityagov, et al., 1979	DH

Entropy of phase transition

ΔS_trs (J/mol*K)	Temperature (K)	Initial Phase	Final Phase	Reference	Comment
51.83	164.76	crystaline, I	liquid	Lebedev, Lityagov, et al., 1979	DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes

Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
MS - José A. Martinho Simões

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C₄H₉O⁺ + Tetrahydrofuran = (C₄H₉O⁺ • )

By formula: C₄H₉O⁺ + C₄H₈O = (C₄H₉O⁺ • C₄H₈O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	125.	kJ/mol	PHPMS	Hiraoka and Takimoto, 1986	gas phase; M
Δ_rH°	136.	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	122.	J/mol*K	PHPMS	Hiraoka and Takimoto, 1986	gas phase; M
Δ_rS°	135.	J/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	95.8	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₄H₁₁O⁺ + Tetrahydrofuran = (C₄H₁₁O⁺ • )

By formula: C₄H₁₁O⁺ + C₄H₈O = (C₄H₁₁O⁺ • C₄H₈O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	127.	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	123.	J/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	90.4	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₅H₁₁O⁺ + Tetrahydrofuran = (C₅H₁₁O⁺ • )

By formula: C₅H₁₁O⁺ + C₄H₈O = (C₅H₁₁O⁺ • C₄H₈O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	126.	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, 86 KEE/CAS; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	123.	J/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, 86 KEE/CAS; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	89.1	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, 86 KEE/CAS; M

(C₄H₉O⁺ • Tetrahydrofuran ) + = (C₄H₉O⁺ • 2)

By formula: (C₄H₉O⁺ • C₄H₈O) + C₄H₈O = (C₄H₉O⁺ • 2C₄H₈O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.	kJ/mol	PHPMS	Hiraoka, Takimoto, et al., 1987	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	75.	J/mol*K	N/A	Hiraoka, Takimoto, et al., 1987	gas phase; Entropy change calculated or estimated; M

C₆H₅NO₂^- + Tetrahydrofuran = (C₆H₅NO₂^- • )

By formula: C₆H₅NO₂^- + C₄H₈O = (C₆H₅NO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Tetrahydrofuran = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₄H₈O = (C₇H₄N₂O₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.9 ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
5.9	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Tetrahydrofuran = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₄H₈O = (C₆H₄FNO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Tetrahydrofuran = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₄H₈O = (C₆H₄FNO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
12.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Tetrahydrofuran = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₄H₈O = (C₆H₄FNO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
12.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Tetrahydrofuran = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + C₄H₈O = (C₇H₇NO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Tetrahydrofuran = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + C₄H₈O = (C₇H₇NO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Tetrahydrofuran = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + C₄H₈O = (C₇H₇NO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Tetrahydrofuran = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₄H₈O = (C₇H₄N₂O₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	15. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
15.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Tetrahydrofuran = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₄H₈O = (C₇H₄N₂O₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.8 ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
8.8	308.	PHPMS	Chowdhury, 1987	gas phase; M

+ 2 = Tetrahydrofuran

By formula: C₄H₄O + 2H₂ = C₄H₈O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-151.1 ± 0.50	kJ/mol	Chyd	Dolliver, Gresham, et al., 1938, 2	gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -153.3 ± 0.50 kJ/mol; At 355 °K; ALS

+ Tetrahydrofuran = ( • )

By formula: Mg⁺ + C₄H₈O = (Mg⁺ • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	280. ± 20.	kJ/mol	ICR	Operti, Tews, et al., 1988	gas phase; switching reaction,Thermochemical ladder(Mg+)CH3OH; M

Tetrahydrofuran (solution) + (solution) = C₉H₈O₆W (solution) + (solution)

By formula: C₄H₈O (solution) + C₆O₆W (solution) = C₉H₈O₆W (solution) + CO (solution)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	60.7 ± 4.2	kJ/mol	PC	Nakashima and Adamson, 1982	solvent: Tetrahydrofuran; MS

C₁₄H₂₁MnO₂ (solution) + Tetrahydrofuran (solution) = C₁₁H₁₃MnO₃ (solution) + (solution)

By formula: C₁₄H₂₁MnO₂ (solution) + C₄H₈O (solution) = C₁₁H₁₃MnO₃ (solution) + C₇H₁₆ (solution)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-67.4 ± 5.9	kJ/mol	PAC	Klassen, Selke, et al., 1990	solvent: Heptane; MS

C₁₂H₁₆CrO₅ (solution) + Tetrahydrofuran (solution) = C₉H₈CrO₆ (solution) + (solution)

By formula: C₁₂H₁₆CrO₅ (solution) + C₄H₈O (solution) = C₉H₈CrO₆ (solution) + C₇H₁₆ (solution)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-51.9 ± 5.0	kJ/mol	PAC	Yang, Peters, et al., 1986	solvent: Heptane; MS

+ = Tetrahydrofuran

By formula: C₄H₆O + H₂ = C₄H₈O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-107.0 ± 1.3	kJ/mol	Chyd	Allinger, Glaser, et al., 1981	liquid phase; solvent: Hexane; ALS

+ = Tetrahydrofuran

By formula: H₂ + C₄H₆O = C₄H₈O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-117.1 ± 1.3	kJ/mol	Chyd	Allinger, Glaser, et al., 1981	liquid phase; solvent: Hexane; ALS

Tetrahydrofuran (solution) + C₂₀H₃₀Sm (solution) = C₂₄H₃₈OSm (solution)

By formula: C₄H₈O (solution) + C₂₀H₃₀Sm (solution) = C₂₄H₃₈OSm (solution)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-30.5 ± 1.7	kJ/mol	RSC	Nolan, Stern, et al., 1989	solvent: Toluene; MS

C₂₄H₃₈OSm (solution) + Tetrahydrofuran (solution) = C₂₈H₄₆O₂Sm (solution)

By formula: C₂₄H₃₈OSm (solution) + C₄H₈O (solution) = C₂₈H₄₆O₂Sm (solution)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-20.5 ± 4.2	kJ/mol	RSC	Nolan, Stern, et al., 1989	solvent: Toluene; MS

C₂₄H₃₉Si₃U (solution) + Tetrahydrofuran (solution) = C₂₈H₄₇OSi₃U (solution)

By formula: C₂₄H₃₉Si₃U (solution) + C₄H₈O (solution) = C₂₈H₄₇OSi₃U (solution)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-41.0 ± 0.8	kJ/mol	RSC	Schock, Seyam, et al., 1988	solvent: Toluene; MS

Henry's Law data

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Data compiled by: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/d(1/T) ((1/T) - 1/(298.15 K)))
k°_H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(k_H))/d(1/T) = Temperature dependence constant (K)

k°_H (mol/(kg*bar))	d(ln(k_H))/d(1/T) (K)	Method	Reference
14.	5700.	M	N/A
22.		M	N/A

Gas phase ion energetics data

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Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C₄H₈O⁺ (ion structure unspecified)

Quantity	Value	Units	Method	Reference	Comment
IE (evaluated)	9.40 ± 0.02	eV	N/A	N/A	L
Quantity	Value	Units	Method	Reference	Comment
Proton affinity (review)	822.1	kJ/mol	N/A	Hunter and Lias, 1998	HL
Quantity	Value	Units	Method	Reference	Comment
Gas basicity	794.7	kJ/mol	N/A	Hunter and Lias, 1998	HL

Ionization energy determinations

IE (eV)	Method	Reference	Comment
9.38 ± 0.05	EI	Holmes and Lossing, 1991	LL
9.38	PE	Behan, Dean, et al., 1976	LLK
9.41	S	Doucet, Sauvageau, et al., 1972	LLK
9.42 ± 0.01	S	Hernandez, 1963	RDSH
9.54	PI	Watanabe, Nakayama, et al., 1962	RDSH
9.74	PE	Kimura, Katsumata, et al., 1981	Vertical value; LLK
9.71	PE	Gerson, Worley, et al., 1978	Vertical value; LLK
9.65	PE	Schmidt and Schweig, 1974	Vertical value; LLK
9.53	PE	Pignataro and Distefano, 1974	Vertical value; LLK
9.57 ± 0.02	PE	Bain, Bunzli, et al., 1973	Vertical value; LLK

Appearance energy determinations

Ion	AE (eV)	Other Products	Method	Reference	Comment
C₂H₂⁺	17.3 ± 0.3	?	EI	Gallegos and Kiser, 1962	RDSH
C₂H₃⁺	16.1 ± 0.3	?	EI	Gallegos and Kiser, 1962	RDSH
C₂H₃O⁺	12.8 ± 0.2	?	EI	Gallegos and Kiser, 1962	RDSH
C₂H₄O⁺	12.27	C₂H₄	EI	Collin and Conde-Caprace, 1966	RDSH
C₂H₅⁺	15.8 ± 0.2	?	EI	Gallegos and Kiser, 1962	RDSH
C₃H₃⁺	18.7 ± 0.6	?	EI	Gallegos and Kiser, 1962	RDSH
C₃H₄⁺	15.2 ± 0.3	?	EI	Gallegos and Kiser, 1962	RDSH
C₃H₅⁺	13.72	?	EI	Collin and Conde-Caprace, 1966	RDSH
C₃H₆⁺	11.54	?	EI	Collin and Conde-Caprace, 1966	RDSH
C₄H₇O⁺	10.44	H	EI	Collin and Conde-Caprace, 1966	RDSH

Ion clustering data

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Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

C₄H₉O⁺ + Tetrahydrofuran = (C₄H₉O⁺ • )

By formula: C₄H₉O⁺ + C₄H₈O = (C₄H₉O⁺ • C₄H₈O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	125.	kJ/mol	PHPMS	Hiraoka and Takimoto, 1986	gas phase; M
Δ_rH°	136.	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	122.	J/mol*K	PHPMS	Hiraoka and Takimoto, 1986	gas phase; M
Δ_rS°	135.	J/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	95.8	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

(C₄H₉O⁺ • Tetrahydrofuran ) + = (C₄H₉O⁺ • 2)

By formula: (C₄H₉O⁺ • C₄H₈O) + C₄H₈O = (C₄H₉O⁺ • 2C₄H₈O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.	kJ/mol	PHPMS	Hiraoka, Takimoto, et al., 1987	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	75.	J/mol*K	N/A	Hiraoka, Takimoto, et al., 1987	gas phase; Entropy change calculated or estimated; M

C₄H₁₁O⁺ + Tetrahydrofuran = (C₄H₁₁O⁺ • )

By formula: C₄H₁₁O⁺ + C₄H₈O = (C₄H₁₁O⁺ • C₄H₈O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	127.	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	123.	J/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	90.4	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₅H₁₁O⁺ + Tetrahydrofuran = (C₅H₁₁O⁺ • )

By formula: C₅H₁₁O⁺ + C₄H₈O = (C₅H₁₁O⁺ • C₄H₈O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	126.	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, 86 KEE/CAS; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	123.	J/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, 86 KEE/CAS; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	89.1	kJ/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, 86 KEE/CAS; M

C₆H₄FNO₂^- + Tetrahydrofuran = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₄H₈O = (C₆H₄FNO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Tetrahydrofuran = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₄H₈O = (C₆H₄FNO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
12.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Tetrahydrofuran = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₄H₈O = (C₆H₄FNO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
12.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₅NO₂^- + Tetrahydrofuran = (C₆H₅NO₂^- • )

By formula: C₆H₅NO₂^- + C₄H₈O = (C₆H₅NO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Tetrahydrofuran = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₄H₈O = (C₇H₄N₂O₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.8 ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
8.8	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Tetrahydrofuran = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₄H₈O = (C₇H₄N₂O₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	15. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
15.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Tetrahydrofuran = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₄H₈O = (C₇H₄N₂O₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.9 ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
5.9	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Tetrahydrofuran = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + C₄H₈O = (C₇H₇NO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Tetrahydrofuran = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + C₄H₈O = (C₇H₇NO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Tetrahydrofuran = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + C₄H₈O = (C₇H₇NO₂^- • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 35°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	308.	PHPMS	Chowdhury, 1987	gas phase; M

+ Tetrahydrofuran = ( • )

By formula: Mg⁺ + C₄H₈O = (Mg⁺ • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	280. ± 20.	kJ/mol	ICR	Operti, Tews, et al., 1988	gas phase; switching reaction,Thermochemical ladder(Mg+)CH3OH; M

Mass spectrum (electron ionization)

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Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

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Owner	NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved.
Origin	Japan AIST/NIMC Database- Spectrum MS-NW- 76
NIST MS number	227725

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Gas Chromatography

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), References, Notes

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Column type	Active phase	Temperature (C)	I	Reference	Comment
Packed	C78, Branched paraffin	130.	609.9	Dallos, Sisak, et al., 2000	He; Column length: 3.3 m
Packed	C78, Branched paraffin	130.	609.8	Reddy, Dutoit, et al., 1992	Chromosorb G HP; Column length: 3.3 m
Packed	Apolane	130.	611.	Dutoit, 1991	Column length: 3.7 m
Packed	SE-30	150.	630.	Tiess, 1984	Ar, Gas Chrom Q (80-100 mesh); Column length: 3. m
Packed	SE-30	100.	626.	Winskowski, 1983	Gaschrom Q; Column length: 2. m
Packed	Apiezon L	120.	620.	Bogoslovsky, Anvaer, et al., 1978	Celite 545
Packed	Apiezon L	160.	631.	Bogoslovsky, Anvaer, et al., 1978	Celite 545
Packed	Apiezon L	70.	618.	Bogoslovsky, Anvaer, et al., 1978
Packed	Apolane	130.	612.9	Riedo, Fritz, et al., 1976	He, Chromosorb; Column length: 2.4 m
Packed	Apolane	190.	623.2	Riedo, Fritz, et al., 1976	He, Chromosorb; Column length: 2.4 m
Packed	Silicon High Vacuum Grease (obsolete)	170.	640.	Jonas, Janák, et al., 1966	H2
Packed	Silicon High Vacuum Grease (obsolete)	170.	640.	Janák, Jonas, et al., 1965	H2, Celite
Packed	Apiezon L	130.	631.	Wehrli and Kováts, 1959	Celite; Column length: 2.25 m
Packed	Apiezon L	70.	618.	Wehrli and Kováts, 1959	Celite; Column length: 2.25 m

Kovats' RI, non-polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	CBP-1	617.	Shimadzu, 2003	25. m/0.2 mm/0.25 μm, He, 50. C @ 5. min, 4. K/min; T_end: 200. C
Capillary	SE-54	621.	Rembold, Wallner, et al., 1989	30. m/0.25 mm/0.25 μm, He, 0. C @ 12. min, 12. K/min; T_end: 250. C
Capillary	OV-101	609.	Yamaguchi and Shibamoto, 1979	N2, 2. K/min; Column length: 70. m; Column diameter: 0.28 mm; T_start: 80. C; T_end: 200. C
Capillary	OV-101	610.	Yamaguchi and Shibamoto, 1979	N2, 2. K/min; Column length: 70. m; Column diameter: 0.28 mm; T_start: 80. C; T_end: 200. C

Kovats' RI, polar column, isothermal

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Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	Carbowax 20M	70.	868.	Annino and Villalobos, 1999	31.3 m/0.53 mm/0.54 μm
Packed	Carbowax 20M	75.	895.	Goebel, 1982	N2, Kieselgur (60-100 mesh); Column length: 2. m
Packed	PEG-2000	150.	888.	Anderson, Jurel, et al., 1973	He, Celite 545 (44-60 mesh); Column length: 3. m
Packed	PEG-2000	152.	907.	Anderson, Jurel, et al., 1973	He, Celite 545 (44-60 mesh); Column length: 3. m
Packed	PEG-2000	179.	915.	Anderson, Jurel, et al., 1973	He, Celite 545 (44-60 mesh); Column length: 3. m
Packed	PEG-2000	180.	900.	Anderson, Jurel, et al., 1973	He, Celite 545 (44-60 mesh); Column length: 3. m
Packed	PEG-2000	200.	903.	Anderson, Jurel, et al., 1973	He, Celite 545 (44-60 mesh); Column length: 3. m

Kovats' RI, polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	CBP-20	868.	Shimadzu, 2003	25. m/0.2 mm/0.25 μm, He, 50. C @ 5. min, 4. K/min; T_end: 200. C
Capillary	DB-Wax	861.	Umano, Hagi, et al., 1994	He, 40. C @ 2. min, 2. K/min; Column length: 60. m; Column diameter: 0.25 mm; T_end: 200. C
Capillary	Carbowax 20M	866.	Yamaguchi and Shibamoto, 1979	N2, 2. K/min; Column length: 50. m; Column diameter: 0.28 mm; T_start: 80. C; T_end: 200. C
Capillary	Carbowax 20M	867.	Yamaguchi and Shibamoto, 1979	N2, 2. K/min; Column length: 50. m; Column diameter: 0.28 mm; T_start: 80. C; T_end: 200. C

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type	Active phase	I	Reference	Comment
Capillary	CP Sil 8 CB	632.	Elmore, Campo, et al., 2002	60. m/0.25 mm/0.25 μm, He, 40. C @ 2. min, 4. K/min; T_end: 280. C
Capillary	CP Sil 8 CB	629.	Elmore, Mottram, et al., 2000	60. m/0.25 mm/0.25 μm, He, 40. C @ 2. min, 4. K/min; T_end: 280. C

Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Column type	Active phase	I	Reference	Comment
Capillary	HP-5	623.	Engel, Baty, et al., 2002	30. m/0.25 mm/0.25 μm, He; Program: 5C(5min) => 3C/min => 20C => 5C/min => 100C 15C/min => 150C (5min)

Van Den Dool and Kratz RI, polar column, temperature ramp

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Column type	Active phase	I	Reference	Comment
Capillary	CP-Wax 52CB	854.	Alasalvar, Taylor, et al., 2005	60. m/0.25 mm/0.25 μm, 35. C @ 4. min, 3. K/min; T_end: 203. C
Capillary	Supelcowax-10	857.	Elmore, Nisyrios, et al., 2005	60. m/0.25 mm/0.25 μm, He, 40. C @ 2. min, 4. K/min; T_end: 280. C

Normal alkane RI, non-polar column, isothermal

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Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	Methyl Silicone	100.	622.	Lebrón-Aguilar, Quintanilla-López, et al., 2007
Capillary	Methyl Silicone	120.	626.	Lebrón-Aguilar, Quintanilla-López, et al., 2007
Capillary	Methyl Silicone	140.	629.	Lebrón-Aguilar, Quintanilla-López, et al., 2007
Capillary	Methyl Silicone	80.	620.	Lebrón-Aguilar, Quintanilla-López, et al., 2007
Capillary	DB-1	60.	620.	Shimadzu, 2003, 2	60. m/0.32 mm/1. μm, He
Packed	Apieson L	120.	624.	Kurdina, Markovich, et al., 1969	not specified, not specified
Packed	DC-400	150.	630.	Anderson, 1968	Helium, Gas-Pak (60-80 mesh); Column length: 3.0 m

Normal alkane RI, non-polar column, temperature ramp

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Column type	Active phase	I	Reference	Comment
Capillary	VF-5 MS	614.	Leffingwell and Alford, 2011	60. m/0.32 mm/0.25 μm, Helium, 2. K/min, 260. C @ 28. min; T_start: 30. C
Capillary	VF-5 MS	618.	Leffingwell and Alford, 2011	60. m/0.32 mm/0.25 μm, Helium, 2. K/min, 260. C @ 28. min; T_start: 30. C
Capillary	MDN-5	620.	van Loon, Linssen, et al., 2005	60. m/0.25 mm/0.25 μm, He, 40. C @ 4. min, 4. K/min, 270. C @ 5. min
Capillary	HP-5	633.	Jung, Wichmann, et al., 1999	25. m/0.20 mm/0.33 μm, 50. C @ 3. min, 5. K/min; T_end: 180. C
Capillary	DB-1	615.	Habu, Flath, et al., 1985	3. K/min; Column length: 50. m; Column diameter: 0.32 mm; T_start: 0. C; T_end: 250. C
Capillary	SF-96	618.	Donetzhuber, Johansson, et al., 1976	Nitrogen, 3. K/min, 130. C @ 40. min; Column length: 111. m; Column diameter: 0.76 mm; Initial hold: 8. min

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Methyl Silicone	619.	Farkas, Héberger, et al., 2004	Program: not specified
Capillary	SE-30	636.	Vinogradov, 2004	Program: not specified
Capillary	SPB-1	615.	Flanagan, Streete, et al., 1997	60. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C
Capillary	DB-5	624.	Mateo and Zumalacárregui, 1996	50. m/0.32 mm/0.25 μm, He; Program: 40C (10min) => 3C/min => 95C => 10C/min => 270C (10min)
Capillary	SPB-1	615.	Strete, Ruprah, et al., 1992	60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C
Capillary	SPB-1	638.	Strete, Ruprah, et al., 1992	60. m/0.53 mm/5.0 μm, Helium; Program: not specified
Capillary	DB-1	608.	Kawai, Ishida, et al., 1991	60. m/0.25 mm/0.25 μm; Program: not specified
Capillary	DB-1	612.	Kawai, Ishida, et al., 1991	60. m/0.25 mm/0.25 μm; Program: not specified
Capillary	CP Sil 8 CB	629.	Weller and Wolf, 1989	40. m/0.25 mm/0.25 μm, He; Program: 30 0C (1 min) 15 0C/min -> 45 0C 3 0C/min -> 120 0C
Capillary	SE-30	627.	P'yanova, Zvereva, et al., 1987	Column length: 25. m; Column diameter: 0.25 mm; Program: not specified
Capillary	OV-1	638.	Ramsey and Flanagan, 1982	Program: not specified

Normal alkane RI, polar column, isothermal

View large format table.

Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	DB-Wax	60.	887.	Shimadzu, 2003, 2	50. m/0.32 mm/1. μm, He

Normal alkane RI, polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	DB-Wax	829.	Welke, Manfroi, et al., 2012	30. m/0.25 mm/0.25 μm, Helium; Program: not specified
Capillary	SOLGel-Wax	854.	Johanningsmeier and McFeeters, 2011	30. m/0.25 mm/0.25 μm, Helium; Program: 40 0C (2 min) 5 0C/min -> 140 0C 10 0C/min -> 250 0C (3 min)
Capillary	Carbowax 20M	898.	Vinogradov, 2004	Program: not specified
Capillary	Carbowax 20M	872.	Ramsey and Flanagan, 1982	Program: not specified

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Gas Chromatography, Notes

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Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Gas Chromatography, References

Symbols used in this document:

AE	Appearance energy
C_p,gas	Constant pressure heat capacity of gas
C_p,liquid	Constant pressure heat capacity of liquid
IE (evaluated)	Recommended ionization energy
P_c	Critical pressure
S°_gas	Entropy of gas at standard conditions
S°_liquid	Entropy of liquid at standard conditions
T	Temperature
T_boil	Boiling point
T_c	Critical temperature
T_fus	Fusion (melting) point
T_triple	Triple point temperature
V_c	Critical volume
d(ln(k_H))/d(1/T)	Temperature dependence parameter for Henry's Law constant
k°_H	Henry's Law constant at 298.15K
ΔH_trs	Enthalpy of phase transition
ΔS_trs	Entropy of phase transition
Δ_cH°_gas	Enthalpy of combustion of gas at standard conditions
Δ_cH°_liquid	Enthalpy of combustion of liquid at standard conditions
Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_fusH	Enthalpy of fusion
Δ_fusS	Entropy of fusion
Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions
Δ_rS°	Entropy of reaction at standard conditions
Δ_vapH	Enthalpy of vaporization
Δ_vapH°	Enthalpy of vaporization at standard conditions

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
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Tetrahydrofuran

Data at NIST subscription sites:

Gas phase thermochemistry data

Constant pressure heat capacity of gas

Constant pressure heat capacity of gas

Condensed phase thermochemistry data

Constant pressure heat capacity of liquid

Phase change data

Enthalpy of vaporization

Enthalpy of vaporization

Antoine Equation Parameters

Enthalpy of fusion

Entropy of fusion

Enthalpy of phase transition

Entropy of phase transition

Reaction thermochemistry data

Individual Reactions

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Henry's Law data

Henry's Law constant (water solution)

Gas phase ion energetics data

Ionization energy determinations

Appearance energy determinations

Ion clustering data

Clustering reactions

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Mass spectrum (electron ionization)

Spectrum

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Additional Data

Gas Chromatography

Kovats' RI, non-polar column, isothermal

Kovats' RI, non-polar column, temperature ramp

Kovats' RI, polar column, isothermal

Kovats' RI, polar column, temperature ramp

Van Den Dool and Kratz RI, non-polar column, temperature ramp

Van Den Dool and Kratz RI, non-polar column, custom temperature program

Van Den Dool and Kratz RI, polar column, temperature ramp

Normal alkane RI, non-polar column, isothermal

Normal alkane RI, non-polar column, temperature ramp

Normal alkane RI, non-polar column, custom temperature program

Normal alkane RI, polar column, isothermal

Normal alkane RI, polar column, custom temperature program

References

Notes