... , soy sauce, sauces, snacks, fast food, soups and powdered soup, etc.); a Function: white crystal, with acetic acid odor. ... soy sauce, sauces, snacks, fast food, soups and powdered soup, etc.); also used as a leveling agent, buffer, anti-rust ... Storage: sodium diacetate thermal decomposition , the emitting gas and sour stimuli. To save in constant cool temperature. Efficacy: antimicrobial agents ...