Acid Value of Various Domestic Uses Oil

The acid value is the number of mg of potassium hydroxide required to neutralize the free acid in 1 g of the substance. The acid value is measure of the breakdown of the triacylglycrols into free fatty acids, which has an adverse effect. On account of oxidation of any substance get spoil and decrease the good quality of that substance, oxidation of any substance get increase the acid value. Similarly if oil oxidized its shows high acid value In good oil, the acid value should be very low (< 0.1). The increase in acid value should be taken as an indicator of oxidation of oil which may lead to gum and sludge formation besides corrosion.