Product name Stearic acid
Alias Octadecanoic acid; n-Octadecan acid; Octadecan acid
CAS RN 57-11-4
EINECS No. 200-313-4
Molecular formula C18H36O2
Molecular weight 284.48
Hazard label

Risk Phrase R11; R36/37/38;
Safety Phrase S16; S26; S37/39;
Physical & chemical properties Appearance and properties: Pure product is glossy white soft small piece.
Melting point(℃): 70-71
Boiling point(℃): 383
Relative density(water=1): 0.87
Relative vapor density (air = 1): 9.8
Saturated vapor pressure (kPa): 0.13(173.7?)
Flash point (℃): 196
Ignition temperature (℃): 395
Solubility:Insoluble in water, slightly soluble in ethanol, soluble in acetone and benzene, easily soluble in ether, chloroform, carbon tetrachloride, etc.
Use Widely used in plastic cold resistant plasticizer, stabilizer, surfactant, demolding agent, rubber vulcanizing agent, etc.