Sodium Diacetate appears as a white crystalline powder with acetic odour. Sodium diacetate is a compound of sodium acetate and acetic acid. It is used as a dry source of acidity. Food-grade sodium diacetate (E 262(ii)) can provide acidity regulation and mould inhibition in food applications. It is also used as a buffer and souring agent. Packaging options include 25 kg bags. The listed grade designation is food and technical. Food use as E 262 is subject to the applicable food-additive specification and permitted-use conditions.