| Synonyms: Ethylic
acid; Vinegar acid; vinegar; Methanecarboxylic acid; TCLP extraction
fluid 2; Shotgun; Glacial acetic acid; Acetic acid, solution, more
than 10% but not more than 80% acid |
Structure:  |
| CAS RN: 64-19-7 |
Formula: C2H4O2 |
| Melting point °C: n/a |
Boiling point °C: 117.9 |
| MW: 60.0524 |
pKa: 4.75 |
| Importance in coffee: A
main acid responsible for perceived acidity. |
| During roasting: Maximum
concentration at light roast. |
| Other: Colorless
liquid or solid with a strong vinegar-like odor detectable at 0.2
to 1.0 ppm. HYGROSCOPIC. Density = 1.0492. Vapor Density = 2.1.
Vapor Pressure = 11. Evap rate: 0.97. |
|