Thiazole, 2-methyl-
- Formula: C4H5NS
- Molecular weight: 99.154
- IUPAC Standard InChIKey: VZWOXDYRBDIHMA-UHFFFAOYSA-N
- CAS Registry Number: 3581-87-1
- 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. - Species with the same structure:
- Other names: 2-Methylthiazole
- Information on this page:
- Other data available:
- Options:
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.
Condensed phase thermochemistry data
Go To: Top, Phase change data, Mass spectrum (electron ionization), UV/Visible 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: Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 50.65 | cal/mol*K | N/A | Soulie, Goursot, et al., 1969 | |
S°liquid | 50.641 | cal/mol*K | N/A | Goursot and Westrum, 1968 | |
S°liquid | 50.641 | cal/mol*K | N/A | Goursot and Westrum, 1968, 2 |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
36.02 | 298.15 | Soulie, Goursot, et al., 1969 | T = 5 to 300 K. |
36.011 | 298.15 | Goursot and Westrum, 1968 | T = 5 to 340 K. |
36.011 | 298.15 | Goursot and Westrum, 1968, 2 | T = 15 to 298 K. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), UV/Visible 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 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
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 401.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 401.95 | K | N/A | Soulie, Bares, et al., 1975 | Uncertainty assigned by TRC = 0.25 K; calculated from Antoine eq. based on obs. vapor pressure; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 248.43 | K | N/A | Meyer and Metzger, 1966 | Uncertainty assigned by TRC = 0.05 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 248.43 | K | N/A | Soulie, Goursot, et al., 1969, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 246.5 | K | N/A | Soulie, Goursot, et al., 1969, 2 | Crystal phase 2 phase; Uncertainty assigned by TRC = 0.2 K; TRC |
Ttriple | 248.43 | K | N/A | Goursot and Westrum, 1968, 3 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 246.53 | K | N/A | Goursot and Westrum, 1968, 3 | Metastable crystal phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.42 | 368. | A | Stephenson and Malanowski, 1987 | Based on data from 353. to 402. K. See also Dykyj, Svoboda, et al., 1999.; AC |
9.56 | 357. | A | Stephenson and Malanowski, 1987 | Based on data from 342. to 404. K. See also Soulie, Goursot, et al., 1969, 3.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.906 | 248.6 | Goursot and Westrum, 1968, 4 | See also Soulie, Goursot, et al., 1969, 3.; AC |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
2.9061 | 248.43 | crystaline, I | liquid | Soulie, Goursot, et al., 1969 | DH |
2.7130 | 246.5 | crystaline, II | liquid | Soulie, Goursot, et al., 1969 | Metastable crystals.; DH |
2.9070 | 248.42 | crystaline, I | liquid | Goursot and Westrum, 1968 | DH |
2.7120 | 246.5 | crystaline, II | liquid | Goursot and Westrum, 1968 | Metastable crystal form.; DH |
2.90691 | 248.43 | crystaline, I | liquid | Goursot and Westrum, 1968, 2 | DH |
2.71269 | 246.53 | crystaline, II | liquid | Goursot and Westrum, 1968, 2 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
11.70 | 248.43 | crystaline, I | liquid | Soulie, Goursot, et al., 1969 | DH |
11.01 | 246.5 | crystaline, II | liquid | Soulie, Goursot, et al., 1969 | Metastable; DH |
11.70 | 248.42 | crystaline, I | liquid | Goursot and Westrum, 1968 | DH |
11.00 | 246.5 | crystaline, II | liquid | Goursot and Westrum, 1968 | Metastable; DH |
11.70 | 248.43 | crystaline, I | liquid | Goursot and Westrum, 1968, 2 | DH |
11.00 | 246.53 | crystaline, II | liquid | Goursot and Westrum, 1968, 2 | DH |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, UV/Visible 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
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
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 | TNO Volatile Compounds in Food - Chemical Concepts |
NIST MS number | 249119 |
UV/Visible spectrum
Go To: Top, Condensed phase thermochemistry data, 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.
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
View spectrum image in SVG format.
Download spectrum in JCAMP-DX format.
Source | Bolshakov, et al., 1969 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 20238 |
Instrument | unknown |
Boiling point | 128.5 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Soulie, Goursot, et al., 1969
Soulie, M.A.; Goursot, P.; Peneloux, A.; Metzger, J.,
Properties thermochimiques du methyl-2 thiazole,
J. chim. Phys. physicochim. Biol., 1969, 66, 607-610. [all data]
Goursot and Westrum, 1968
Goursot, P.; Westrum, E.F., Jr.,
Heat capacity and thermodynamic properties of 2-methylthiazole from 5 to 350K,
J. Chem. Eng. Data, 1968, 13, 468-471. [all data]
Goursot and Westrum, 1968, 2
Goursot, P.; Westrum, E.F., Jr.,
Mesure de la capacite calorifique du methyl-2 thiazole de 5 a 300K,
Compt. rend., 1968, C266, 667-668. [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]
Soulie, Bares, et al., 1975
Soulie, M.A.; Bares, D.; Metzger, J.,
Vapor Pressures of Some Azaaromatic Compounds,
C. R. Seances Acad. Sci., Ser. C, 1975, 281, 341. [all data]
Meyer and Metzger, 1966
Meyer, R.; Metzger, J.,
C. R. Acad. Sci. Paris, Ser. C, 1966, 263, 1333. [all data]
Soulie, Goursot, et al., 1969, 2
Soulie, M.A.; Goursot, P.; Peneloux, A.; Metzger, J.,
Thermochemical properties of 2-methylthiazole,
J. Chim. Phys. Phys.-Chim. Biol., 1969, 66, 607-10. [all data]
Goursot and Westrum, 1968, 3
Goursot, P.; Westrum, E.F.,
Heat capacity and thermodynamic properties of 2-methylthiazole from 5 to 25 0 k,
J. Chem. Eng. Data, 1968, 13, 468-71. [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]
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]
Soulie, Goursot, et al., 1969, 3
Soulie, M.A.; Goursot, P.; Peneloux, A.; Metzger, J.,
J. Chim. Phys. Phys.-Chim. Biol., 1969, 66, 4, 607. [all data]
Goursot and Westrum, 1968, 4
Goursot, P.; Westrum, E.F., Jr.,
C. R. Acad. Sci. Paris, Ser. C, 1968, 266, 667. [all data]
Bolshakov, et al., 1969
Bolshakov, G.F., et al.,
Ultraviolet Spectra of Heteroorganic Compounds, 1969, 358. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.