parameter Unit Heptane Limonene
Molecular weight Dalton 100 136
Density g/cm3 0.679 0.841
Octanol/water partition coefficient ------- 4.50 4.58
Water solubility at 25 ºC Weight % 0.00024% 0.08%
Methanol solubility at 25 ºC Weight % 29.7% 32%
Viscosity at 25 ºC CPs 0.389 0.923
Boiling point ºC 98.4 178
UV Cut off wavelength nm 200 250
Table1: Physico-chemical properties of heptane and limonene.