Secondary Butanol

2-Butanol, or sec-butanol, is a chemical compound with formula C4H10O. This secondary alcohol is a flammable, colorless liquid that is soluble in 12 parts water and completely miscible with polar organic solvent such as ethers and other alcohols. Sec-butyl alcohol appears as a clear colorless liquid with an alcohol odor. 2-butanol is used as a solvent, it is mainly converted to butanone (methyl ethyl ketone, MEK), which is an important industrial solvent and found in many domestic cleaning agents and paint removers.

2-Butanol, sec-Butanol, Butan-2-ol, 2-Hydroxybutane, 2-Butyl alcohol, s-Butyl alcohol, Butylene hydrate, s-Butanol, 1-Methyl-1-propanol, 1-Methylpropyl alcohol, Ethyl methyl carbinol, Methyl ethyl carbinol, Butanol-2, 1-Methyl propanol, Methylethylcarbinol
Chemical Formula
CAS Number


Molar Weight
74.12 g/mol
Melting Point
-115 °C
Boiling Point
99 - 102 °C
Flash Point
24 °C
0.808 g/cc
Yellow, Liquid (clear)

Uses and Applications

Key applications

  • Plastics and polymers
  • Paint and Coatings


  • CASE & Construction
  • Polymers