1-Octanol
- Formula: C8H18O
- Molecular weight: 130.2279
- IUPAC Standard InChIKey: KBPLFHHGFOOTCA-UHFFFAOYSA-N
- CAS Registry Number: 111-87-5
- 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: Octyl alcohol; n-Octan-1-ol; n-Octanol; n-Octyl alcohol; Alfol 8; Caprylic alcohol; Heptyl carbinol; Octanol; Octilin; Sipol L8; Alcohol C-8; n-Heptyl carbinol; Octan-1-ol; Prim-n-octyl alcohol; Octanol-(1); Dytol M-83; Lorol 20; Octyl alcohol, normal-primary; Primary octyl alcohol; Epal 8; 1-Hydroxyoctane; Emery 3322; Emery 3324; Lorol C 8-98; 1-Octyl alcohol; NSC 9823
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Phase change data
Go To: Top, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
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
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 468. ± 1. | K | AVG | N/A | Average of 37 out of 41 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 257. ± 2. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 655. ± 10. | K | AVG | N/A | Average of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 26. ± 8. | atm | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.497 | l/mol | N/A | Gude and Teja, 1995 | |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.01 ± 0.03 | mol/l | N/A | Gude and Teja, 1995 | |
ρc | 2.04 | mol/l | N/A | Teja, Lee, et al., 1989 | TRC |
ρc | 1.97 | mol/l | N/A | Anselme and Teja, 1988 | Uncertainty assigned by TRC = 0.05 mol/l; TRC |
ρc | 2.04 | mol/l | N/A | Efremov, 1966 | Uncertainty assigned by TRC = 0.02 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 17.0 ± 0.5 | kcal/mol | AVG | N/A | Average of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 24.00 | kcal/mol | N/A | Davies and Kybett, 1965 | AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
371.2 | 0.025 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
16.6 | 303. | GS | Kulikov, Verevkin, et al., 2001 | Based on data from 282. to 321. K.; AC |
16.4 | 318. | N/A | N'Guimbi, Kasehgari, et al., 1992 | Based on data from 273. to 363. K.; AC |
16.1 | 343. | A | Stephenson and Malanowski, 1987 | Based on data from 328. to 400. K.; AC |
12.5 | 445. | A | Stephenson and Malanowski, 1987 | Based on data from 430. to 474. K.; AC |
13.5 | 412. | A | Stephenson and Malanowski, 1987 | Based on data from 397. to 479. K.; AC |
11.4 | 490. | A | Stephenson and Malanowski, 1987 | Based on data from 475. to 555. K.; AC |
15.3 | 274. | A,ME | Stephenson and Malanowski, 1987 | Based on data from 267. to 282. K. See also Davies and Kybett, 1965.; AC |
16.1 | 358. | N/A | Wilhoit and Zwolinski, 1973 | Based on data from 343. to 468. K.; AC |
15.5 | 367. | DTA | Kemme and Kreps, 1969 | Based on data from 352. to 468. K.; AC |
16.8 | 308. | N/A | Geiseler, Fruwert, et al., 1966 | Based on data from 293. to 353. K.; AC |
15.3 ± 0.3 | 267. | V | Davies and Kybett, 1965 | ALS |
14.7 | 380. | N/A | Rose, Papahronis, et al., 1958 | Based on data from 365. to 427. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
502.19 to 553.99 | 3.95880 | 1350.263 | -129.565 | Ambrose, Sprake, et al., 1975 | Coefficents calculated by NIST from author's data. |
328.02 to 387.0 | 4.80344 | 1753.525 | -99.0 | Ambrose, Ellender, et al., 1974 | Coefficents calculated by NIST from author's data. |
386.42 to 479.27 | 3.89708 | 1274.261 | -141.328 | Ambrose and Sprake, 1970 | Coefficents calculated by NIST from author's data. |
352.1 to 468.5 | 3.74273 | 1196.639 | -149.043 | Kemme and Kreps, 1969 | |
293. to 353. | 6.47111 | 2603.359 | -48.799 | Geiseler, Fruwert, et al., 1966 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
6.033 | 258.4 | van Miltenburg, Gabrielová, et al., 2003 | AC |
Gas phase ion energetics data
Go To: Top, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
B - John E. Bartmess
MM - Michael M. Meot-Ner (Mautner)
Proton affinity at 298K
Proton affinity (kcal/mol) | Reference | Comment |
---|---|---|
191. | Holmes, Aubry, et al., 1999 | MM |
De-protonation reactions
C8H17O- + =
By formula: C8H17O- + H+ = C8H18O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 374.3 ± 2.1 | kcal/mol | G+TS | Higgins and Bartmess, 1998 | gas phase; B |
ΔrH° | 373.5 ± 3.0 | kcal/mol | CIDC | Haas and Harrison, 1993 | gas phase; Kinetic method gives energy-dependent results.; B |
ΔrH° | 371.8 ± 2.8 | kcal/mol | G+TS | Boand, Houriet, et al., 1983 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 367.7 ± 2.0 | kcal/mol | IMRE | Higgins and Bartmess, 1998 | gas phase; B |
ΔrG° | 366.9 ± 3.1 | kcal/mol | H-TS | Haas and Harrison, 1993 | gas phase; Kinetic method gives energy-dependent results.; B |
ΔrG° | 365.2 ± 2.7 | kcal/mol | CIDC | Boand, Houriet, et al., 1983 | gas phase; value altered from reference due to change in acidity scale; B |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Gude and Teja, 1995
Gude, M.; Teja, A.S.,
Vapor-Liquid Critical Properties of Elements and Compounds. 4. Aliphatic Alkanols,
J. Chem. Eng. Data, 1995, 40, 1025-1036. [all data]
Teja, Lee, et al., 1989
Teja, A.S.; Lee, R.J.; Rosenthal, D.J.; Anselme, M.J.,
Correlation of the Critical Properties of Alkanes and Alkanols
in 5th IUPAC Conference on Alkanes and AlkanolsGradisca, 1989. [all data]
Anselme and Teja, 1988
Anselme, M.J.; Teja, A.S.,
Critical Temperatures and Densities of Isomeric Alkanols with Six to Ten Carbon Atoms,
Fluid Phase Equilib., 1988, 40, 127-34. [all data]
Efremov, 1966
Efremov, Yu.V.,
Density, Surface Tension, Saturated Vapor Pressurs and Critical Parameters of Alcohols,
Zh. Fiz. Khim., 1966, 40, 1240. [all data]
Davies and Kybett, 1965
Davies, M.; Kybett, B.,
Sublimation and vaporization heats of long-chain alcohols,
Trans. Faraday Soc., 1965, 61, 1608. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Kulikov, Verevkin, et al., 2001
Kulikov, Dmitry; Verevkin, Sergey P.; Heintz, Andreas,
Enthalpies of vaporization of a series of aliphatic alcohols,
Fluid Phase Equilibria, 2001, 192, 1-2, 187-207, https://doi.org/10.1016/S0378-3812(01)00633-1
. [all data]
N'Guimbi, Kasehgari, et al., 1992
N'Guimbi, J.; Kasehgari, H.; Mokbel, I.; Jose, J.,
Tensions de vapeur d'alcools primaires dans le domaine 0,3 Pa à 1,5 kPa,
Thermochimica Acta, 1992, 196, 2, 367-377, https://doi.org/10.1016/0040-6031(92)80100-B
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Wilhoit and Zwolinski, 1973
Wilhoit, R.C.; Zwolinski, B.J.,
Physical and thermodynamic properties of aliphatic alcohols,
J. Phys. Chem. Ref. Data Suppl., 1973, 1, 2, 1. [all data]
Kemme and Kreps, 1969
Kemme, Herbert R.; Kreps, Saul I.,
Vapor pressure of primary n-alkyl chlorides and alcohols,
J. Chem. Eng. Data, 1969, 14, 1, 98-102, https://doi.org/10.1021/je60040a011
. [all data]
Geiseler, Fruwert, et al., 1966
Geiseler, Gerhard; Fruwert, Johanna; Hüttig, Rainer,
Dampfdruck- und Schwingungsverhalten der stellungsisomeren n-Octanole und hydroxydeuterierten n-Octanole,
Chem. Ber., 1966, 99, 5, 1594-1601, https://doi.org/10.1002/cber.19660990525
. [all data]
Rose, Papahronis, et al., 1958
Rose, Arthur; Papahronis, B.; Williams, E.,
Experimental Measurement of Vapor-Liquid Equilibria for Octanol-Decanol and Decanol-Dodecanol Binaries.,
Ind. Eng. Chem. Chem. Eng. Data Series, 1958, 3, 2, 216-219, https://doi.org/10.1021/i460004a008
. [all data]
Ambrose, Sprake, et al., 1975
Ambrose, D.; Sprake, C.H.S.; Townsend, R.,
Thermodynamic Properties of Organic Oxygen Compounds. XXXVII. Vapour Pressures of Methanol, Ethanol, Pentan-1-ol, and Octan-1-ol from the Normal Boiling Temperature to the Critical Temperature,
J. Chem. Thermodyn., 1975, 7, 2, 185-190, https://doi.org/10.1016/0021-9614(75)90267-0
. [all data]
Ambrose, Ellender, et al., 1974
Ambrose, D.; Ellender, J.H.; Sprake, C.H.S.,
Thermodynamic properties of organic oxygen compounds XXXV. Vapour pressures of aliphatic alcohols,
The Journal of Chemical Thermodynamics, 1974, 6, 9, 909-914, https://doi.org/10.1016/0021-9614(74)90235-3
. [all data]
Ambrose and Sprake, 1970
Ambrose, D.; Sprake, C.H.S.,
Thermodynamic properties of organic oxygen compounds XXV. Vapour pressures and normal boiling temperatures of aliphatic alcohols,
The Journal of Chemical Thermodynamics, 1970, 2, 5, 631-645, https://doi.org/10.1016/0021-9614(70)90038-8
. [all data]
van Miltenburg, Gabrielová, et al., 2003
van Miltenburg, J. Cees; Gabrielová, Hana; Ruzicka, Kvetoslav,
Heat Capacities and Derived Thermodynamic Functions of 1-Hexanol, 1-Heptanol, 1-Octanol, and 1-Decanol between 5 K and 390 K,
J. Chem. Eng. Data, 2003, 48, 5, 1323-1331, https://doi.org/10.1021/je0340856
. [all data]
Holmes, Aubry, et al., 1999
Holmes, J.L.; Aubry, C.; Mayer, P.M.,
Proton affinities of primary alkanols: An appraisal of the kinetic method,
J. Phys. Chem. A, 1999, 103, 705. [all data]
Higgins and Bartmess, 1998
Higgins, P.R.; Bartmess, J.E.,
The Gas Phase Acidities of Long Chain Alcohols.,
Int. J. Mass Spectrom., 1998, 175, 1-2, 71-79, https://doi.org/10.1016/S0168-1176(98)00125-6
. [all data]
Haas and Harrison, 1993
Haas, M.J.; Harrison, A.G.,
The Fragmentation of Proton-Bound Cluster Ions and the Gas-Phase Acidities of Alcohols,
Int. J. Mass Spectrom. Ion Proc., 1993, 124, 2, 115, https://doi.org/10.1016/0168-1176(93)80003-W
. [all data]
Boand, Houriet, et al., 1983
Boand, G.; Houriet, R.; Baumann, T.,
The gas phase acidity of aliphatic alcohols,
J. Am. Chem. Soc., 1983, 105, 2203. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Vc Critical volume ΔfusH Enthalpy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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