Ethanol, 2-methoxy-

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Reaction thermochemistry data

Go To: Top, Gas phase ion energetics 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 by: John E. Bartmess

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Individual Reactions

C3H7O2- + Hydrogen cation = Ethanol, 2-methoxy-

By formula: C3H7O2- + H+ = C3H8O2

Quantity Value Units Method Reference Comment
Δr1564. ± 8.8kJ/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr1535. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale

Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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

Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

Quantity Value Units Method Reference Comment
Proton affinity (review)768.8kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity729.8kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.13PEKimura, Katsumata, et al., 1981LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H5O+10.36CH2OHEILossing, 1977LLK
C2H6O+10.3 ± 0.2CH3OEIBurgers, Holmes, et al., 1983LBLHLM
C2H6O+10.45 ± 0.05CH2OEIHolmes, Lossing, et al., 1982LBLHLM
C2H7O+9.96 ± 0.05HCOEIHolmes and Lossing, 1984LBLHLM

De-protonation reactions

C3H7O2- + Hydrogen cation = Ethanol, 2-methoxy-

By formula: C3H7O2- + H+ = C3H8O2

Quantity Value Units Method Reference Comment
Δr1564. ± 8.8kJ/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr1535. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B

Mass spectrum (electron ionization)

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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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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 NIST Mass Spectrometry Data Center, 1998.
NIST MS number 290807

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Gas Chromatography

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedSE-30150.630.Tiess, 1984Ar, Gas Chrom Q (80-100 mesh); Column length: 3. m
PackedPorapack Q200.588.Goebel, 1982N2
PackedApiezon L120.591.Bogoslovsky, Anvaer, et al., 1978Celite 545
PackedApiezon L160.595.Bogoslovsky, Anvaer, et al., 1978Celite 545

Kovats' RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryCBP-1617.Shimadzu, 200325. m/0.2 mm/0.25 μm, He, 50. C @ 5. min, 4. K/min; Tend: 200. C

Kovats' RI, polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillarySupelcowax-1060.1184.Castello, Vezzani, et al., 1991N2; Column length: 60. m; Column diameter: 0.75 mm
PackedCarbowax 20M75.1225.Goebel, 1982N2, Kieselgur (60-100 mesh); Column length: 2. m

Kovats' RI, polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryCBP-201180.Shimadzu, 200325. m/0.2 mm/0.25 μm, He, 50. C @ 5. min, 4. K/min; Tend: 200. C

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

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Column type Active phase I Reference Comment
CapillaryUltra-2624.Poskrobko, Linkiewicz, et al., 199425. m/0.32 mm/0.52 μm, H2, 8. K/min; Tstart: 50. C; Tend: 310. C
CapillaryDB-5635.Olson, Wong, et al., 198730. m/0.32 mm/1.0 μm, 5. K/min; Tstart: 20. C; Tend: 200. C

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

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Column type Active phase I Reference Comment
PackedSE-30629.Peng, Ding, et al., 1988Supelcoport; Chromosorb; Column length: 3.05 m; Program: 40C(5min) => 10C/min => 200C or 250C (60min)
PackedSE-30629.Peng, Ding, et al., 1988Supelcoport; Chromosorb; Column length: 3.05 m; Program: 40C(5min) => 10C/min => 200C or 250C (60min)

Normal alkane RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryDB-160.618.Shimadzu, 2003, 260. m/0.32 mm/1. μm, He
PackedDC-400150.646.Anderson, 1968Helium, 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
CapillaryUltra-ALLOY-5626.Tsuge, Ohtan, et al., 201130. m/0.25 mm/0.25 μm, 40. C @ 2. min, 20. K/min, 320. C @ 13. min
CapillaryOV-101623.Zenkevich, 200525. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C
CapillaryBP-1616.Health Safety Executive, 200050. m/0.22 mm/0.75 μm, He, 5. K/min; Tstart: 50. C; Tend: 200. C
CapillaryDB-5635.3Olson, Wong, et al., 198830. m/0.32 mm/1. μm, 5. K/min; Tstart: 20. C; Tend: 200. C

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

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Column type Active phase I Reference Comment
CapillarySPB-1617.Flanagan, Streete, et al., 199760. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C
CapillarySPB-1617.Strete, Ruprah, et al., 199260. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C
CapillarySPB-1616.Strete, Ruprah, et al., 199260. m/0.53 mm/5.0 μm, Helium; Program: not specified
CapillaryOV-1616.Ramsey and Flanagan, 1982Program: not specified

Normal alkane RI, polar column, isothermal

View large format table.

Column type Active phase Temperature (C) I Reference Comment
CapillaryDB-Wax60.1202.Shimadzu, 2003, 250. m/0.32 mm/1. μm, He

Normal alkane RI, polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-Wax1199.Shimadzu, 201230. m/0.32 mm/0.50 μm, Helium, 4. K/min; Tstart: 40. C; Tend: 260. C
CapillaryDB-Wax1199.Shimadzu Corporation, 200330. m/0.32 mm/0.5 μm, He, 4. K/min; Tstart: 40. C; Tend: 260. C

Normal alkane RI, polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryCarbowax 20M1172.Ramsey and Flanagan, 1982Program: not specified

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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.

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Lossing, 1977
Lossing, F.P., Heats of formation of some isomeric [CnH2n+1]+ ions. Substitutional effects on ion stability, J. Am. Chem. Soc., 1977, 99, 7526. [all data]

Burgers, Holmes, et al., 1983
Burgers, P.C.; Holmes, J.L.; Szulejko, J.E.; Mommers, A.A.; Terlouw, J.K., The gas phase ion chemistry of the acetyl cation and isomeric [C2H3O]+ ions. On the structure of the [C2H3O]+ daughter ions generated from the enol of acetone radical cation, Org. Mass Spectrom., 1983, 18, 254. [all data]

Holmes, Lossing, et al., 1982
Holmes, J.L.; Lossing, F.P.; Terlouw, J.K.; Burgers, P.C., The radical cation [CH2OH2]+ and related stable gas phase ion-dipole complexes, J. Am. Chem. Soc., 1982, 104, 2931. [all data]

Holmes and Lossing, 1984
Holmes, J.L.; Lossing, F.P., Heats of formation of organic radicals from appearance energies, Int. J. Mass Spectrom. Ion Processes, 1984, 58, 113. [all data]

Tiess, 1984
Tiess, D., Gaschromatographische Retentionsindices von 125 leicht- bis mittelflüchtigen organischen Substanzen toxikologisch-analytischer Relevanz auf SE-30, Wiss. Z. Wilhelm-Pieck-Univ. Rostock Math. Naturwiss. Reihe, 1984, 33, 6-9. [all data]

Goebel, 1982
Goebel, K.-J., Gaschromatographische Identifizierung Niedrig Siedender Substanzen Mittels Retentionsindices und Rechnerhilfe, J. Chromatogr., 1982, 235, 1, 119-127, https://doi.org/10.1016/S0021-9673(00)95793-5 . [all data]

Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S., Chromatographic constants in gas chromatography (in Russian), Standards Publ. House, Moscow, 1978, 192. [all data]

Shimadzu, 2003
Shimadzu, Gas chromatography analysis of organic solvents using capillary columns (No. 2), 2003, retrieved from http://www.shimadzu.com/apps/form.cfm. [all data]

Castello, Vezzani, et al., 1991
Castello, G.; Vezzani, S.; Gerbino, T., Gas chromatographic separation and automatic identification of complex mixtures of organic solvents in indrustrial wates, J. Chromatogr., 1991, 585, 2, 273-280, https://doi.org/10.1016/0021-9673(91)85088-W . [all data]

Poskrobko, Linkiewicz, et al., 1994
Poskrobko, J.; Linkiewicz, M.; Jaworski, M., Analysis of high-boiling ethoxylates of methyl, ethyl and butyl alcohols, with the use of gas chromatography, Chem. Anal. (Warsaw), 1994, 39, 2, 153-159. [all data]

Olson, Wong, et al., 1987
Olson, K.L.; Wong, C.A.; Fleck, L.L.; Lazar, D.F., Qualitative and Quantitative Determination of Solvent Formulations in Automotive Paints, J. Chromatogr. Sci., 1987, 25, 9, 418-423, https://doi.org/10.1093/chromsci/25.9.418 . [all data]

Peng, Ding, et al., 1988
Peng, C.T.; Ding, S.F.; Hua, R.L.; Yang, Z.C., Prediction of Retention Indexes I. Structure-Retention Index Relationship on Apolar Columns, J. Chromatogr., 1988, 436, 137-172, https://doi.org/10.1016/S0021-9673(00)94575-8 . [all data]

Shimadzu, 2003, 2
Shimadzu, Gas chromatography analysis of organic solvents using capillary columns (No. 3), 2003, retrieved from http://www.shimadzu.com/apps/form.cfm. [all data]

Anderson, 1968
Anderson, D.G., USe of Kovats retention indices and response factors for the qualitative and quantitative analysis of coating solvents, J. Paint Technol., 1968, 40, 527, 549-557. [all data]

Tsuge, Ohtan, et al., 2011
Tsuge, S.; Ohtan, H.; Watanabe, C., Pyrolysis - GC/MS Data Book of Synthetic Polymers, Elsevier, 2011, 420. [all data]

Zenkevich, 2005
Zenkevich, I.G., Experimentally measured retention indices., 2005. [all data]

Health Safety Executive, 2000
Health Safety Executive, MDHS 96 Volatile organic compounds in air - Laboratory method using pumed solid sorbent tubes, solvent desorption and gas chromatography in Methods for the Determination of Hazardous Substances (MDHS) guidance, Crown, Colegate, Norwich, 2000, 1-24, retrieved from http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs96.pdf. [all data]

Olson, Wong, et al., 1988
Olson, K.L.; Wong, C.A.; Fleck, L.L.; Lazar, D.F., Qualitative and quantitative determination of solvent formulations in automotive paints, J. Coat. Technol., 1988, 60, 762, 45-50. [all data]

Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D., Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technicalseries1997-01-011.pdf. [all data]

Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J., Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning, Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111 . [all data]

Ramsey and Flanagan, 1982
Ramsey, J.D.; Flanagan, R.J., Detection and Identification of Volatile Organic Compounds in Blood by Headspace Gas Chromatography as an Aid to the Diagnosis of Solvent Abuse, J. Chromatogr., 1982, 240, 2, 423-444, https://doi.org/10.1016/S0021-9673(00)99622-5 . [all data]

Shimadzu, 2012
Shimadzu, Pharmaceutical Related, Analysis of pharmaceutical residual solvent (observation of separation) (1) - GC, 2012, retrieved from www.shimadzu.ru/applications/Applicationspdf/GC/Pharma/Pharmaceutical residual solvents GC.pdf. [all data]

Shimadzu Corporation, 2003
Shimadzu Corporation, Analysis of pharmaceutical residual solvent (observation of separation), 2003, retrieved from http://www.shimadzu.com.br/analitica/aplicacoes/book/pharm69.pdf. [all data]


Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References