Properties of n-butanol

Chemical formulaC4H10O
Research octane number96
Cetane number17–25
Low heating value (MJ/kg)33.2
Latent heat of vaporization at 25 °C (kJ/kg)626
Kinematic viscosity at 20 °C (mm2/s)2.63
Density (g/m3)0.81
Flash point (°C)35
Auto ignition temperature (°C)343
Oxygen (% by weight)21.62
Boiling point (°C)117

n-butanol is a dominant priority of researchers as a fuel in diesel engine owing to its inferior viscosity, higher calorific value and finite moisture absorbing capacity.