The acid value is the number which expresses in milligrams the amount of potassium hydroxide necessary to neutralise the free acids present in 1 g of the substance. Here direct titration is done taking a neutralized mixture
Iodine value of an oil or fat is the number of grams of iodine, which is absorbed by 100 g of the substance (oil or fat) under described conditions. It can be determined by the following method.
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