- InChI
- InChI=1S/C2H4O2S/c3-2(4)1-5/h5H,1H2,(H,3,4)
- InChI Key
- CWERGRDVMFNCDR-UHFFFAOYSA-N
- Formula
- C2H4O2S
- SMILES
- O=C(O)CS
- Molecular Weight1
- 92.12
- CAS
- 68-11-1
- Other Names
-
- .alpha.-mercaptoacetic acid
- 2-mercaptoacetic acid
- 2-mercaptoethanoic acid
- 2-thioglycolic acid
- Acetic acid, 2-mercapto-
- Acide thioglycolique
- Glycolic acid, thio-
- Kyselina merkaptooctova
- Kyselina thioglykolova
- NSC 1894
- Thioglycollic acid
- UN 1940
- USAF CB-35
- glycolic acid, 2-thio-
- mercaptoacetic acid
- thioglycolic acid
- thiovanic acid
- «alpha»-Mercaptoacetic acid
- ω : Acentric Factor.
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- ΔfusH° : Enthalpy of fusion at standard conditions (kJ/mol).
- ΔvapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
- ΔvapH : Enthalpy of vaporization at a given temperature (kJ/mol).
- IE : Ionization energy (eV).
- log10WS : Log10 of Water solubility in mol/l.
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- Pc : Critical Pressure (kPa).
- n0 : Refractive Index.
- Tboil : Normal Boiling Point Temperature (K).
- Tboilr : Boiling point at reduced pressure (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Vc : Critical Volume (m3/kmol).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | 0.6261 | Relay (1.0) Calculated Property | |
| ΔfG° | -270.39 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -412.05 | kJ/mol | Relay (1.0) Calculated Property |
| ΔfusH° | 10.66 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 63.62 | kJ/mol | Relay (1.0) Calculated Property |
| IE | 10.01 | eV | Relay (1.0) Calculated Property |
| log10WS | 0.42 | Relay (1.0) Calculated Property | |
| logPoct/wat | 8.000e-04 | Crippen Calculated Property | |
| McVol | 62.830 | ml/mol | McGowan Calculated Property |
| Pc | 7049.79 | kPa | Joback Calculated Property |
| Tboil | 471.42 | K | Relay (1.0) Calculated Property |
| Tc | 740.78 | K | Relay (1.0) Calculated Property |
| Tfus | 292.70 | K | Relay (1.0) Calculated Property |
| Vc | 0.214 | m3/kmol | Relay (1.0) Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [108.95; 131.40] | J/mol×K | [454.07; 652.94] | 
|
| Cp,gas | 108.95 | J/mol×K | 454.07 | Joback Calculated Property |
| Cp,gas | 113.18 | J/mol×K | 487.22 | Joback Calculated Property |
| Cp,gas | 117.21 | J/mol×K | 520.36 | Joback Calculated Property |
| Cp,gas | 121.04 | J/mol×K | 553.51 | Joback Calculated Property |
| Cp,gas | 124.68 | J/mol×K | 586.65 | Joback Calculated Property |
| Cp,gas | 128.13 | J/mol×K | 619.80 | Joback Calculated Property |
| Cp,gas | 131.40 | J/mol×K | 652.94 | Joback Calculated Property |
| ΔvapH | 56.80 | kJ/mol | 380.00 | NIST |
| n0 | 1.50270 | 293.15 | Isobaric Vapor Liquid Equilibrium for Binary Systems of Thioglycolic Acid with Water, Butyl Acetate, Butyl Formate, and Isobutyl Acetate at 101.3 kPa | |
Pressure Dependent Properties
| Property | Value | Unit | Pressure (kPa) | Source |
|---|---|---|---|---|
| Tboilr | 369.20 | K | 0.70 | NIST |
Similar Compounds
Find more compounds similar to Acetic acid, mercapto-.
Mixtures
- Acetic acid, mercapto- + Water
- Acetic acid, butyl ester + Acetic acid, mercapto-
- Formic acid, butyl ester + Acetic acid, mercapto-
- Isobutyl acetate + Acetic acid, mercapto-
- Diisopropyl ether + Acetic acid, mercapto- + Water
- Propane, 2-methoxy-2-methyl- + Acetic acid, mercapto- + Water
- Acetic acid, butyl ester + Acetic acid, mercapto- + Water
- Isobutyl acetate + Acetic acid, mercapto- + Water
- Acetic acid, mercapto- + Isopropyl acetate + Water
Sources
- Cheméo Relay (1.0)
- Crippen Method
- Crippen Method
- Liquid-liquid equilibrium measurement and thermodynamics modeling for the systems water + thioglycolic acid + isopropyl ether/methyl tert-butyl ether at 298.15 and 308.15 K
- Measurement and thermodynamic modelling of ternary liquid-liquid equilibrium for extraction of thioglycolic acid from aqueous solution with different solvents
- Separation of thioglycolic acid from its aqueous solution by ionic liquids: Ionic liquids selection by the COSMO-SAC model and liquid-liquid phase equilibrium
- Isobaric Vapor Liquid Equilibrium for Binary Systems of Thioglycolic Acid with Water, Butyl Acetate, Butyl Formate, and Isobutyl Acetate at 101.3 kPa
- Liquid-Liquid Equilibria for the Ternary Systems of Water + Thioglycolic Acid + 2-Ethyl-1-hexyl Thioglycolate and Water + 2-Ethyl-1-hexyl Thioglycolate + 2-Ethyl-1-hexanol at 293.15, 303.15, and 313.15 K under 101 kPa
- Joback Method
- McGowan Method
- NIST Webbook
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