2-Butanone

Alias

MEK; Methyl ethyl ketone; 2-Butanone (Controlled Chemical); Ethylmethylketone,99%; Ethyl methyl ketone~MEK~Methyl ethyl ketone; Ethyl methyl ketone; butan-2-one

CAS RN

78-93-3

EINECS #

201-159-0

Molecular formula

C4H8O

Molecular weight

72.1057

Dangerous mark

 F:Flammable
 Xi:Irritant

Risk term

R11; R36; R66; R67;

Safety term

S16; S9;

Pysico-chemical property

appearance colorless flammable liquid
melting point -85.9℃ 
boiling point 79.6℃ 
relative density 0.8054 
refractive index 1.3788 
flashing point -6℃ 
solubility soluble in water, ethyl alcohol and diethyl ether; mixing soluble with oils 

Uses

as industrial solvent and as dewaxing agent of lubrication oil