Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Phase change data

Go To: Top, 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Tboil440. ± 70.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Deltavap60.16kJ/molN/AMajer and Svoboda, 1985 
Deltavap54.6 ± 0.3kJ/molN/AMokbel, Razzouk, et al., 2009Based on data from 293. - 362. K.; AC
Deltavap54. ± 2.kJ/molVCarson, Laye, et al., 1977ALS
Deltavap53.6kJ/molN/ACarson, Laye, et al., 1977DRB

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
363.20.016Weast and Grasselli, 1989BS
363.0.016Buckingham and Donaghy, 1982BS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
52.7 ± 0.3328.N/AMokbel, Razzouk, et al., 2009Based on data from 293. - 362. K.; AC
51.8317.AStephenson and Malanowski, 1987Based on data from 302. - 458. K. See also Carson, Laye, et al., 1977 and Beersmans and Jungers, 2010.; AC

Antoine Equation Parameters

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

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) A B C Reference Comment
302. - 457.74.82712003.528-41.973Stull, 1947Coefficents calculated by NIST from author's data.

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:


Go To: Top, Phase change data, Notes

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

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Mokbel, Razzouk, et al., 2009
Mokbel, Ilham; Razzouk, Antonio; Sawaya, Terufat; Jose, Jacques, Experimental Vapor Pressures of 2-Phenylethylamine, Benzylamine, Triethylamine, and cis -2,6-Dimethylpiperidine in the Range between 0.2 Pa and 75 kPa, J. Chem. Eng. Data, 2009, 54, 3, 819-822, . [all data]

Carson, Laye, et al., 1977
Carson, A.S.; Laye, P.G.; Yrekli, M., The enthalpy of formation of benzylamine, J. Chem. Thermodyn., 1977, 9, 827-829. [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]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, . [all data]

Beersmans and Jungers, 2010
Beersmans, J.; Jungers, J.C., Synthèse et Étude des Chlorure, Bromure et Iodure de Deutérométhyle, Bull. Soc. Chim. Belges, 2010, 56, 5-8, 238-250, . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, . [all data]


Go To: Top, Phase change data, References