Cetane
From Glossary of Meteorology
cetane
Common name for n-hexadecane, C16H34, a large alkane with good ignition quality, which is used as a diesel fuel.
The cetane number of a fuel is a measure of the quality of a diesel fuel; it is defined as being the fraction of cetane in a blend of cetane and a less reactive compound that would have the same ignition quality as the fuel in question.
See alkanes, octane.
See alkanes, octane.