1,3,5-Triazine
- Formula: C3H3N3
- Molecular weight: 81.0760
- IUPAC Standard InChIKey: JIHQDMXYYFUGFV-UHFFFAOYSA-N
- CAS Registry Number: 290-87-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: s-Triazine; Cyanidine; Vedita 250; s-Triazine-(1,3,5); sym-Triazine
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Phase change data
Go To: Top, IR Spectrum, 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 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.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 387.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 353.44 | K | N/A | Van Bommel, van Miltenburg, et al., 1988 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 353.9 | K | N/A | Briels and van Miltenburg, 1979 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.27 ± 0.45 | kcal/mol | CGC | Lipkind and Chickos, 2009 | Based on data from 342. to 373. K. See also Lipkind and Chickos, 2009, 2.; AC |
ΔvapH° | 13.20 ± 0.03 | kcal/mol | V | Johnson and Prosen, 1985 | Private communication; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 12.95 ± 0.045 | kcal/mol | C | Bystrom, 1982 | ALS |
ΔsubH° | 13.0 | kcal/mol | N/A | Bystrom, 1982 | DRB |
ΔsubH° | 13.0 ± 0.05 | kcal/mol | N/A | Bystrom, 1982 | AC |
ΔsubH° | 13.5 ± 0.50 | kcal/mol | V | Iniguez, Lopez, et al., 1982 | ALS |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
13.9 | 222. | TE,ME | De Wit, Van Miltenburg, et al., 1983 | Based on data from 212. to 229. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
3.480 | 353.4 | Acree, 1991 | AC |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.0177 | 197.7 | crystaline, II | crystaline, I | van Bommel, van Miltenburg, et al., 1988 | First order treatment from 175 K H = 127.4 J/mol First order treatment from 150 K H = 362.8 J/mol Second order treatment; DH |
3.4799 | 353.44 | crystaline, I | liquid | van Bommel, van Miltenburg, et al., 1988 | DH |
3.4857 | 353.9 | crystaline, I | liquid | Briels and van Miltenburg, 1979, 2 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
9.849 | 353.9 | crystaline, I | liquid | Briels and van Miltenburg, 1979, 2 | DH |
IR Spectrum
Go To: Top, Phase change 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
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 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 |
State | gas |
Instrument | HP-GC/MS/IRD |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, IR Spectrum, 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
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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, 1990. |
NIST MS number | 118737 |
References
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes
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]
Van Bommel, van Miltenburg, et al., 1988
Van Bommel, M.J.; van Miltenburg, J.C.; Schuijff, A.,
Heat Capacity Measurements and Thermodynamic Functions of 1,3,5- Triazine and 1,3,5-Trioxane,
J. Chem. Thermodyn., 1988, 20, 397-403. [all data]
Briels and van Miltenburg, 1979
Briels, W.J.; van Miltenburg, J.C.,
s-Triazine:heat capacities between 130 and 380 K, the solid state transition, and the enthalpy of melting,
J. Chem. Phys., 1979, 70, 1064. [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]
Johnson and Prosen, 1985
Johnson, W.H.; Prosen, E.J.,
Determination of the enthalpies of combustion and formation of substituted triazines in an adiabatic rotating bomb calorimeter,
J. Res. NBS, 1985, 90, 295-303. [all data]
Bystrom, 1982
Bystrom, K.,
The stabilization energy of 1,3,5-triazine derived from measurements of the enthalpies of combustion and sublimation,
J. Chem. Thermodyn., 1982, 14, 865-870. [all data]
Iniguez, Lopez, et al., 1982
Iniguez, J.C.; Lopez, M.E.; McEachern, D.M.,
Vapor pressure and sublimation enthalpy of s-triazine,
Rev. Soc. Quim. Mex., 1982, 26, 122-124. [all data]
De Wit, Van Miltenburg, et al., 1983
De Wit, H.G.M.; Van Miltenburg, J.C.; De Kruif, C.G.,
Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulphur 1. Vapour pressures and enthalpies of sublimation,
The Journal of Chemical Thermodynamics, 1983, 15, 7, 651-663, https://doi.org/10.1016/0021-9614(83)90079-4
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
van Bommel, van Miltenburg, et al., 1988
van Bommel, M.J.; van Miltenburg, J.C.; Schuijff, A.,
Heat-capacity measurements and thermodynamic functions of 1,3,5-triazine and 1,3,5-trioxane,
J. Chem. Thermodynam., 1988, 20, 397-403. [all data]
Briels and van Miltenburg, 1979, 2
Briels, W.J.; van Miltenburg, J.C.,
s-Triazine: heat capacities between 130 and 380 K, the solid state transition, and the enthalpy of melting,
J. Chem. Phys., 1979, 70, 1064-1066. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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