Butanone 46 (organic compound)

Methyl ethyl ketone is an organic compound with the chemical formula CH3COCH2CH3 and a molecular weight of 72.11.It is a colorless and transparent liquid with an odor similar to acetone.Easy to evaporate.Can be miscible with ethanol,ether,benzene,chloroform,and oils.Dissolved in 4 parts of water,but its solubility decreases with increasing temperature,and it can form an azeotrope with water.Low toxicity,median lethal dose(rat,oral)3300mg/kg.Flammable,vapor can form explosive mixtures with air.High concentration steam has anesthetic properties.
Chinese name:Methyl ethyl ketone
Foreign name:2-Butanone
Alias:2-butanone,2-oxobutane,methyl ethyl ketone,butanone
Chemical formula:C4H8O
Molecular weight:72.11
CAS login number:78-93-3
EINECS login number:201-159-0
Melting point:-85.9℃
Boiling point:79.6℃
Water solubility:soluble
Density:0.806 g/cm3
Appearance:Colorless and transparent liquid
Flash point:-9℃(CC)
Safety description:S9;S12；S16；S25；S33；S45
Hazard symbol:F;T；Xi
Hazard description:R11;R36；R37；R66；R67；R39/23/24/25
UN Dangerous Goods Number:1193
Control Information:Precursor-3