Light liquid paraffin oil is made by the Solvay process and is primarily composed of saturated hydrocarbons in the molecules. The Light Liquid Paraffin molecules are not polymerized and are essentially linear carbon chains with no branches. The molecular weight may vary from 210 gms/mol to 1120 grams/mol. The variations in molecular weight are due to various types of side reactions that occur during the reactions used to make it.