Chemical Properties of 2-Mercaptopropanoic acid (CAS 79-42-5)

2-Mercaptopropanoic acid

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InChI
InChI=1S/C3H6O2S/c1-2(6)3(4)5/h2,6H,1H3,(H,4,5)
InChI Key
PMNLUUOXGOOLSP-UHFFFAOYSA-N
Formula
C3H6O2S
SMILES
CC(S)C(=O)O
Molecular Weight1
106.14
CAS
79-42-5
Other Names
  • Thiolactic acid
  • 2-Mercaptopropionic acid
  • Propanoic acid, 2-mercapto-
  • Propionic acid, 2-mercapto-
  • «alpha»-Mercaptopropanoic acid
  • «alpha»-Mercaptopropionic acid
  • 2-Thiolactic acid
  • UN 2936
  • 2-Sulfanylpropanoic acid
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Physical Properties

Property Value Unit Source
Δf -264.41 kJ/mol Joback Calculated Property
Δfgas -336.86 kJ/mol Joback Calculated Property
Δfus 9.73 kJ/mol Joback Calculated Property
Δvap 52.05 kJ/mol Joback Calculated Property
log10WS -0.36 Crippen Calculated Property
logPoct/wat 0.389 Crippen Calculated Property
McVol 76.920 ml/mol McGowan Calculated Property
Pc 6113.06 kPa Joback Calculated Property
Inp [1057.00; 1057.00]   Show Hide
Inp 1057.00 NIST
Inp 1057.00 NIST
I [2130.00; 2130.00]   Show Hide
I 2130.00 NIST
I 2130.00 NIST
I 2130.00 NIST
Tboil 476.51 K Joback Calculated Property
Tc 677.47 K Joback Calculated Property
Tfus 255.78 K Joback Calculated Property
Ttriple 291.90 ± 0.20 K NIST
Vc 0.277 m3/kmol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [145.49; 176.58] J/mol×K [476.51; 677.47] Show Hide
Cp,gas 145.49 J/mol×K 476.51 Joback Calculated Property
Cp,gas 151.38 J/mol×K 510.00 Joback Calculated Property
Cp,gas 156.98 J/mol×K 543.50 Joback Calculated Property
Cp,gas 162.29 J/mol×K 576.99 Joback Calculated Property
Cp,gas 167.32 J/mol×K 610.48 Joback Calculated Property
Cp,gas 172.09 J/mol×K 643.97 Joback Calculated Property
Cp,gas 176.58 J/mol×K 677.47 Joback Calculated Property

Pressure Dependent Properties

Property Value Unit Pressure (kPa) Source
Tboilr 375.20 K 2.10 NIST

Similar Compounds

Propanoic acid, 2-mercapto-, methyl ester. 2-Mercapto-1-propanol. «beta»'-Dithiodilactic acid. Butanedioic acid, mercapto-. Propanoic acid, 2-mercapto-, ethyl ester. 3-Mercaptopropionic acid. Propanoic acid. Propanoic acid, 2-bromo-, (.+/-.)-. 2-Bromopropanoic acid. 2,3-Dimercaptopropan-1-ol. 3-mercapto-2-butanone. 2-Propanethiol. 3-hydroxy-2-thiabutane. Propanoic acid, 2-methyl-. 2-mercapto-3-pentanone.

Find more compounds similar to 2-Mercaptopropanoic acid.

Sources

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