Ethane, methoxy-
- Formula: C3H8O
- Molecular weight: 60.0950
- IUPAC Standard InChIKey: XOBKSJJDNFUZPF-UHFFFAOYSA-N
- CAS Registry Number: 540-67-0
- 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: Ether, ethyl methyl; Ethyl methyl ether; Methane, ethoxy-; Methyl ethyl ether; Methoxyethane; C2H5OCH3; UN 1039
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Gas phase thermochemistry data
Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, 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:
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 |
---|---|---|---|---|---|
ΔfH°gas | -51.73 ± 0.16 | kcal/mol | Cm | Pilcher, Pell, et al., 1964 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°gas | -503.68 ± 0.15 | kcal/mol | Cm | Pilcher, Pell, et al., 1964 | Corresponding ΔfHºgas = -51.73 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
12.23 | 100. | Chao J., 1986 | p=1 bar.; GT |
15.16 | 150. | ||
17.67 | 200. | ||
21.10 | 273.15 | ||
22.30 ± 0.026 | 298.15 | ||
22.39 | 300. | ||
27.218 | 400. | ||
31.707 | 500. | ||
35.626 | 600. | ||
39.015 | 700. | ||
41.955 | 800. | ||
44.515 | 900. | ||
46.745 | 1000. | ||
48.688 | 1100. | ||
50.375 | 1200. | ||
51.845 | 1300. | ||
53.124 | 1400. | ||
54.240 | 1500. |
Phase change data
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), Gas Chromatography, 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 283.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 312.10 | K | N/A | Lecat, 1947 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tboil | 279.75 | K | N/A | Ipatieff and Burwell, 1941 | Uncertainty assigned by TRC = 0.6 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 438.03 | K | N/A | Zawisza and Glowka, 1970 | Uncertainty assigned by TRC = 1. K; TRC |
Tc | 437.8 | K | N/A | Berthoud and Brum, 1924 | Uncertainty assigned by TRC = 0.3 K; by disappearance of meniscus; TRC |
Tc | 437.9 | K | N/A | Berthoud and Brum, 1924 | Uncertainty assigned by TRC = 0.3 K; by appearance of turbidity; TRC |
Tc | 441.6 | K | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 4. K; TRC |
Tc | 440.9 | K | N/A | Pawlewski, 1882 | Uncertainty assigned by TRC = 3. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 43.04 | atm | N/A | Zawisza and Glowka, 1970 | Uncertainty assigned by TRC = 0.5000 atm; TRC |
Pc | 43.42 | atm | N/A | Berthoud and Brum, 1924 | Uncertainty assigned by TRC = 0.4000 atm; vapor pressure at Tc; TRC |
Pc | 46.27 | atm | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 3.0000 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.222 | l/mol | N/A | Zawisza and Glowka, 1970 | Uncertainty assigned by TRC = 0.003 l/mol; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 4.529 | mol/l | N/A | Berthoud and Brum, 1924 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
ρc | 5.109 | mol/l | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 0.33 mol/l; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.19 | 296. | A | Stephenson and Malanowski, 1987 | Based on data from 281. to 433. K.; AC |
8.84 | 231. | A | Stephenson and Malanowski, 1987 | Based on data from 216. to 299. K.; AC |
8.87 | 296. | A | Stephenson and Malanowski, 1987 | Based on data from 281. to 438. K.; AC |
6.29 | 265. | N/A | Stull, 1947 | Based on data from 182. to 280. 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 |
---|---|---|---|---|---|
182. to 280.7 | 4.02731 | 952.618 | -44.189 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
280.7 to 433. | 3.44928 | 600.134 | -108.534 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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. |
---|---|
NIST MS number | 150 |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-101 | 421. | Zenkevich, Eliseenkov, et al., 2011 | 25. m/0.20 mm/0.25 μm, Nitrogen, 6. K/min; Tstart: 40. C; Tend: 220. C |
Capillary | OV-101 | 421. | Zenkevich, 2005 | 25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 419. | Zenkevich, 1995 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Pilcher, Pell, et al., 1964
Pilcher, G.; Pell, A.S.; Coleman, D.J.,
Measurements of heats of combustion by flame calorimetry. Part 2-Dimethyl ether, methyl ethyl ether, methyl n-propyl ether, methyl isopropyl ether,
Trans. Faraday Soc., 1964, 60, 499-505. [all data]
Chao J., 1986
Chao J.,
Thermodynamic properties of key organic oxygen compounds in the carbon range C1 to C4. Part 2. Ideal gas properties,
J. Phys. Chem. Ref. Data, 1986, 15, 1369-1436. [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]
Lecat, 1947
Lecat, M.,
Orthobaric Azeotropes of Sulfides,
Bull. Cl. Sci., Acad. R. Belg., 1947, 33, 160-82. [all data]
Ipatieff and Burwell, 1941
Ipatieff, V.N.; Burwell, R.L.,
The Catalytic Preparationand Interconversion of Simple and Mixed Ethers,
J. Am. Chem. Soc., 1941, 63, 969. [all data]
Zawisza and Glowka, 1970
Zawisza, A.C.; Glowka, S.,
Liquid-vapour equilibria and thermodynamic functions of methyl ethyl ether - sulphur dioxide system up to 300c and 77.81 atmospheres,
Bull. Acad. Pol. Sci., Ser. Sci. Chim., 1970, 18, 555-60. [all data]
Berthoud and Brum, 1924
Berthoud, A.; Brum, R.,
Physical Properties of Some Organic Compounds.,
J. Chim. Phys. Phys.-Chim. Biol., 1924, 21, 143-60. [all data]
Nadezhdin, 1887
Nadezhdin, A.,
Rep. Phys., 1887, 23, 708. [all data]
Pawlewski, 1882
Pawlewski, B.,
The critical temperatures of ester compounds,
Ber. Dtsch. Chem. Ges., 1882, 15, 2460-4. [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]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Zenkevich, Eliseenkov, et al., 2011
Zenkevich, I.G.; Eliseenkov, E.V.; Kasatochkin, A.N.; Ukolov, A.I.,
Identification of the products of nonregioselective organic reactions by chromatography - mass spectrometry: chloro derivatives of dialkyl ethers,
Rus. J. Anal. Chem., 2011, 66, 14, 1445-1454, https://doi.org/10.1134/S1061934811140218
. [all data]
Zenkevich, 2005
Zenkevich, I.G.,
Experimentally measured retention indices., 2005. [all data]
Zenkevich, 1995
Zenkevich, I.G.,
Calculation of Gas-Chromatographic Retention Indices from Physico-Chemical Constants of Organic Compounds,
Z. Anal. Chem., 1995, 50, 10, 1048-1056. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Pc Critical pressure Tboil Boiling point Tc Critical temperature Vc Critical volume ΔcH°gas Enthalpy of combustion of gas at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH Enthalpy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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