Butanedioic acid, methylene-, dimethyl ester


Phase change 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 compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil481.2KN/AWeast and Grasselli, 1989BS

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
381.20.015Weast and Grasselli, 1989BS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
67.0357.AStephenson and Malanowski, 1987Based on data from 342. to 481. K. See also Stull, 1947.; AC

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
342.5 to 481.6.412842871.257-33.212Stull, 1947Coefficents calculated by NIST from author's data.

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 compiled by: John E. Bartmess

De-protonation reactions

C7H9O4- + Hydrogen cation = Butanedioic acid, methylene-, dimethyl ester

By formula: C7H9O4- + H+ = C7H10O4

Quantity Value Units Method Reference Comment
Δr1458. ± 17.kJ/molIMRBChou, Dahlke, et al., 1993gas phase; Acid: CH2=C(CO2Me)CH2CO2Me. Between MeSH, tBuSH.

Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryUltra-1100.1061.Herrmann, Dufka, et al., 198625. m/0.20 mm/0.32 μm, N2
CapillaryUltra-1125.1059.Herrmann, Dufka, et al., 198625. m/0.20 mm/0.32 μm, N2
CapillaryUltra-1150.1057.Herrmann, Dufka, et al., 198625. m/0.20 mm/0.32 μm, N2
CapillaryUltra-175.1065.Herrmann, Dufka, et al., 198625. m/0.20 mm/0.32 μm, N2

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

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Column type Active phase I Reference Comment
CapillaryVF-5MS1096.5Tret'yakov, 200830. m/0.25 mm/0.25 μm, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C

References

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

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]

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]

Chou, Dahlke, et al., 1993
Chou, P.K.; Dahlke, G.D.; Kass, S.R., Unimolecular Rearrangements of Carbanions in the Gas Phase .2. Cyclopropyl Anions, J. Chem. Soc. Chem. Comm., 1993, 115, 1, 315, https://doi.org/10.1021/ja00054a045 . [all data]

Herrmann, Dufka, et al., 1986
Herrmann, F.; Dufka, O.; Churacek, J., Fused-Silica Capillary Gas Chromatography-Mass Spectrometry of Some Dicarboxylic Acids Present in Condensation-Type Polymers I. Dimethyl Esters, J. Chromatogr., 1986, 360, 79-88, https://doi.org/10.1016/S0021-9673(00)91653-4 . [all data]

Tret'yakov, 2008
Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2008. [all data]


Notes

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