Recently, most of the biodiesel were made from edible oils fuels associate in having an alkalic catalyst. Biodiesel outlined because of the mono-alkyl esters of vegetable. Biodiesel is made by Trans esterifying the oil or fat with associate in having alcohol (methanol/ethanol) beneath gentle conditions within the presence of a base catalyst. Within the gift study, high free carboxylic acid (14.71 percentages) white silk-cotton tree seed oil was used as a supply for biodiesel production. The Transesterification method is developed to convert the high FFA oils to its mono-esters. To reduce the definite quantity of the oil, 2 mg KOH/g of oil victimization the acid catalyst (H2SO4) and fuel is used. The alkalic catalyzed Tran’ esterification me...