2-Mercaptopropanoic acid
- Formula: C3H6O2S
- Molecular weight: 106.144
- IUPAC Standard InChIKey: PMNLUUOXGOOLSP-UHFFFAOYSA-N
- CAS Registry Number: 79-42-5
- 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: Thiolactic acid; 2-Mercaptopropionic acid; Propanoic acid, 2-mercapto-; Propionic acid, 2-mercapto-; α-Mercaptopropanoic acid; α-Mercaptopropionic acid; 2-Thiolactic acid; UN 2936; 2-Sulfanylpropanoic acid
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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 291.9 | K | N/A | Huffman and Ellis, 1935 | Uncertainty assigned by TRC = 0.2 K; adiabatic calorimeter and sample is not particularly pure; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
375.2 | 0.021 | Aldrich Chemical Company Inc., 1990 | BS |
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.
Huffman and Ellis, 1935
Huffman, H.M.; Ellis, E.L.,
Thermal data: III the heat capacities, entropies and free energies of four organic compounds containing sulfur,
J. Am. Chem. Soc., 1935, 57, 46-8. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Notes
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- Symbols used in this document:
Tboil Boiling point Ttriple Triple point temperature - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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