2-butanone - C4h8o, Colorless Flammable Liquid With Acetone Odor, Boiling Point 79.6°c, Water Solubility 26.8%

Molecular formula : C4H8O
MW : 72.10
CAS its dealer-93-3

nature : colorless flammable liquid, acetone odor. -85.9 A C melting point, boiling point of 79.6 A C, 30 A C (15.9kPa), the relative density of 0.8054 (20 / 4 A C), the refractive index of 1.3788, flash point (open cup) -6 A C, 515 spontaneous combustion point. 6 A C, heat capacity 2.297kJ / (kg A C), viscosity (20 A C) 0.41mPa s. Four will dissolve in water, but when the temperature increased solubility lower at 20 A C, water solubility 26.8% (weight), water in 2-butanone solubility of 11.8% (weight). Soluble ethanol and ether, with the oil miscibility. With the formation of water azeotrope, the boiling point of 74.3 A C, 88.7% - butanone. The air explosion limits of 1.97% -10.1% (volume).