Melting Point −24-−23 °C(lit.)
 Boiling Point 141 °C(lit.)
 Water Solubility 37 g/100 mL
 Density 2.55 (vs air)
 Storage Temp Store below +30°C.
 Flash Point 125 °F
 Stability Stable. Incompatible with strong oxidizing agents. Flammable.
 Appearance ≤10, APHA: PROPIONIC ACID
 Refractive Index 1.385-1.387