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2-Butanethiol, 3-methyl-

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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, M. Frenkel director
ALS - H.Y. Afeefy, J.F. Liebman, and S.E. Stein
DRB - D.R. Burgess
AC - W.E. Acree, Jr., J.S. Chickos
CAL - J.S. Chickos, W.E. Acree, Jr., J.F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - E.S. Domalski and E.D. Hearing

QuantityValueUnitsMethodReferenceComment
Tboil382.95KN/ALanum and Morris, 1969Uncertainty assigned by TRC = 0.2 K; TRC
QuantityValueUnitsMethodReferenceComment
Ttriple146.05KN/AMesserly, Finke, et al., 1974Crystal phase 1 phase; Uncertainty assigned by TRC = 0.06 K; TRC
QuantityValueUnitsMethodReferenceComment
Deltavap37.5 ± 0.2kJ/molVGood, 1972ALS
Deltavap37.4kJ/molN/AGood, 1972DRB
Deltavap37.5 ± 0.1kJ/molN/AGood, 1972See also Osborn and Douslin, 1966.; AC
Deltavap37.7kJ/molN/AReid, 1972AC

Enthalpy of vaporization

DeltavapH (kJ/mol)Temperature (K)MethodReferenceComment
37.7300.N/ADykyj, Svoboda, et al., 1999Based on data from 285. - 409. K.; AC
36.2330.A,EBStephenson and Malanowski, 1987Based on data from 315. - 422. K. See also Osborn and Douslin, 1966.; AC

Antoine Equation Parameters

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

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Temperature (K)ABCReference
316.12 - 422.04.000111307.162-55.662Osborn and Douslin, 1966

Enthalpy of fusion

DeltafusH (kJ/mol)Temperature (K)ReferenceComment
0.61146.1Domalski and Hearing, 1996Based on data from 12. - 370. K. See also Messerly, Finke, et al., 1974, 2.; AC

Entropy of fusion

DeltafusS (J/mol*K)Temperature (K)ReferenceComment
48.89144.5Domalski and Hearing, 1996CAL
4.16146.1

Enthalpy of phase transition

DeltaHtrs (kJ/mol)Temperature (K)Initial PhaseFinal PhaseReferenceComment
7.063144.47crystaline, IIcrystaline, IMesserly, Finke, et al., 1974, 2DH
0.6071146.05crystaline, IliquidMesserly, Finke, et al., 1974, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K)Temperature (K)Initial PhaseFinal PhaseReferenceComment
48.89144.47crystaline, IIcrystaline, IMesserly, Finke, et al., 1974, 2DH
4.16146.05crystaline, IliquidMesserly, Finke, et al., 1974, 2DH

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:


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.

Lanum and Morris, 1969
Lanum, W.J.; Morris, J.C., Physical Properties of Some Sulfur and Nitrogen Compounds, J. Chem. Eng. Data, 1969, 14, 93-8. [all data]

Messerly, Finke, et al., 1974
Messerly, J.F.; Finke, H.L.; Todd, S.S., Low-temperature thermal sudies on six organo-sulfur compounds, J. Chem. Thermodyn., 1974, 6, 635-57. [all data]

Good, 1972
Good, W.D., Enthalpies of combustion of 18 organic sulfur compounds related to petroleum, J. Chem. Eng. Data, 1972, 17, 158-162. [all data]

Osborn and Douslin, 1966
Osborn, A.G.; Douslin, D.R., Vapor Pressure Relations of 36 Sulfur Compounds Present in Petroleum., J. Chem. Eng. Data, 1966, 11, 4, 502-509. [doi:10.1021/je60031a014] [all data]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278. [doi:10.1002/aic.690180637] [all data]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987. [doi:10.1007/978-94-009-3173-2] [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1. [doi:10.1063/1.555985] [all data]

Messerly, Finke, et al., 1974, 2
Messerly, J.F.; Finke, H.L.; Todd, S.S., Low-temperature thermal studies on six organo-sulfur compounds, J. Chem. Thermodynam., 1974, 6, 635-657. [all data]


Notes

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