Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Pyrazine

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, Kenneth Kroenlein 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.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil388.7KN/AAldrich Chemical Company Inc., 1990BS
Tboil388.65KN/AAnderson and Shimanskaya, 1969Uncertainty assigned by TRC = 1. K; TRC
Tboil390.35KN/ALecat, 1947Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Tfus324.KN/ABougeard, LeCalve, et al., 1978Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC
Tfus320.15KN/ABruhl, 1897Uncertainty assigned by TRC = 1. K; TRC
Tfus334.05KN/ABruhl, 1897Uncertainty assigned by TRC = 6. K; TRC
Quantity Value Units Method Reference Comment
Deltavap40.5 ± 1.7kJ/molCGCLipkind and Chickos, 2009Based on data from 342. - 373. K. See also Lipkind and Chickos, 2009, 2.; AC
Deltavap56.27 ± 0.46kJ/molCTjebbes, 1962ALS
Deltavap56.3kJ/molN/ATjebbes, 1962DRB

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
388.71.02Weast and Grasselli, 1989BS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
38.8 ± 0.1340.EBSteele, Chirico, et al., 2002Based on data from 354. - 426. K.; AC
36.5 ± 0.2380.EBSteele, Chirico, et al., 2002Based on data from 354. - 426. K.; AC
34.1 ± 0.4420.EBSteele, Chirico, et al., 2002Based on data from 354. - 426. K.; AC
37.9352.N/ASakoguchi, Ueoka, et al., 1995Based on data from 332. - 373. K.; AC

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Reference Comment
56.2303.Sakoguchi, Ueoka, et al., 1995Based on data from 288. - 317. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
14.78325.4ACChirico, Knipmeyer, et al., 2003Based on data from 5. - 380. K.; AC
12.95328.2N/ABougeard, Calve, et al., 1978AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.969300.6crystaline, IIIcrystaline, IIBoyd, Comper, et al., 1979DH
0.060310.crystaline, IIcrystaline, IBoyd, Comper, et al., 1979DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
3.22300.6crystaline, IIIcrystaline, IIBoyd, Comper, et al., 1979DH
0.2310.crystaline, IIcrystaline, IBoyd, Comper, et al., 1979DH

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

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.

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Anderson and Shimanskaya, 1969
Anderson, A.A.; Shimanskaya, M.V., Gas-Liquid Chromatography of some Aliphatic and Heterocyclic Polyfunctional Amines: II. Solution Thermodyn. of Amines in Fix. Phas., Latv. PSR Zinat. Akad. Vestis, Kim. Ser., 1969, No. 5, 527. [all data]

Lecat, 1947
Lecat, M., Some azeotropes of which one constituant is heterocyclic nitrogen, Ann. Soc. Sci. Bruxelles, Ser. 1, 1947, 61, 73. [all data]

Bougeard, LeCalve, et al., 1978
Bougeard, D.; LeCalve, N.; Novak, A.; Bachanh, N., Phase transitions of pyrazine., Mol. Cryst. Liq. Cryst., 1978, 44, 113. [all data]

Bruhl, 1897
Bruhl, J.W., Spectrochemistry of nitrogen containing compounds V, Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1897, 22, 373. [all data]

Lipkind and Chickos, 2009
Lipkind, Dmitri; Chickos, James S., An examination of the vaporization enthalpies and vapor pressures of pyrazine, pyrimidine, pyridazine, and 1,3,5-triazine, Struct Chem, 2009, 20, 1, 49-58, https://doi.org/10.1007/s11224-008-9389-5 . [all data]

Lipkind and Chickos, 2009, 2
Lipkind, D.; Chickos, J.S., , Abstract from 38th Great Lakes Regional Meeting of the American Chemical Society, May 13-16, Chicago, IL, 2009, GLRM-275. [all data]

Tjebbes, 1962
Tjebbes, J., The heats of combustion and formation of the three diazines and their resonance energies, Acta Chem. Scand., 1962, 16, 916-921. [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]

Steele, Chirico, et al., 2002
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A., Measurements of Vapor Pressure, Heat Capacity, and Density along the Saturation Line for «gamma»-Caprolactam, Pyrazine, 1,2-Propanediol, Triethylene Glycol, Phenyl Acetylene, and Diphenyl Acetylene, J. Chem. Eng. Data, 2002, 47, 4, 689-699, https://doi.org/10.1021/je010085z . [all data]

Sakoguchi, Ueoka, et al., 1995
Sakoguchi, Akihiro; Ueoka, Ryuichi; Kato, Yasuo; Arai, Yasuhiko, Vapor Pressures of Alkylpyridines and Alkylpyrazines., KAGAKU KOGAKU RONBUNSHU, 1995, 21, 1, 219-223, https://doi.org/10.1252/kakoronbunshu.21.219 . [all data]

Chirico, Knipmeyer, et al., 2003
Chirico, R.D.; Knipmeyer, S.E.; Steele, W.V., Heat capacities, enthalpy increments, and derived thermodynamic functions for pyrazine between the temperatures 5K and 380K, The Journal of Chemical Thermodynamics, 2003, 35, 7, 1059-1072, https://doi.org/10.1016/S0021-9614(03)00041-7 . [all data]

Bougeard, Calve, et al., 1978
Bougeard, D.; Calve, N. Le; Novak, A.; Nguyen-ba-chanh, A., Phase Transitions of Pyrazine, GMCL, 1978, 44, 1, 113-123, https://doi.org/10.1080/15421407808083935 . [all data]

Boyd, Comper, et al., 1979
Boyd, R.K.; Comper, J.; Ferguson, G., Entropy changes and structural implications for crystalline phases of pyrazine, Can. J. Chem., 1979, 57, 3056-3060. [all data]


Notes

Go To: Top, Phase change data, References