Description. Propionyl chloride or propionic is the acyl chloride of propionic acid . It is a colourless to yellow, clear liquid with a pungent odor. It is a slightly flammable and corrosive substance. It is a colorless, corrosive, volatile liquid.

Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 75.5±3.0 °C at 760 mmHg
Melting Point −94 °C
Molecular Formula C3H5ClO
Molecular Weight 92.524
Flash Point 11.7±0.0 °C
Exact Mass 92.002892
PSA 17.07000
LogP 0.99
Vapour density 3.2 (vs air)
Vapour Pressure 104.6±0.1 mmHg at 25°C
Index of Refraction 1.397
Storage condition Flammables area
Water Solubility REACTS
Freezing Point -94℃

Propionyl chloride can be made by chlorination of propionic acid by phosgene:

CH3CH2CO2H + COCl2 → CH3CH2COCl + HCl + CO2


Post time: Aug-03-2022