Composition of neutral oils from rosin

Abstract
The neutral fractions from gum, wood and tall oil rosins were isolated and examined by gas chromatography. The major components found were diterpene aldehydes and alcohols. Smaller quantities of diterpene hydrocarbons and monoterpenes were identified. The differences in the composition and concentrations of the neutral fractions appear to explain some of the differences in physical characteristics of the three types of rosin.