Question

A triglycerides has a molecular weight of 890 gm and contain 4 double bonds. Calculate the saponification number and iodine number.​

Answer 1

Answer: Saponification value or saponification number (SV or SN) represents the number of milligrams of potassium hydroxide (KOH) required to saponify one gram of fat under the conditions specified. It is a measure of the average molecular weight (or chain length) of all the fatty acids present in the sample as triglycerides. The higher the saponification value, the lower the fatty acids average length, the lighter the mean molecular weight of triglycerides, and vice-versa. Practically, fats or oils with high saponification value (such as coconut and palm oil) are more suitable for soap making.