Sodium sulfite Na2SO3 is a white, water-soluble inorganic salt used commercially as an antioxidant and preservative in food and beverages to prevent spoilage and discoloration.
Bacteriological Peptone is for use in preparing microbiological culture media in a laboratory setting, and is not intended for use in the diagnosis of disease or other conditions in humans.
Buffering, sequestering or emulsifying agent. Trisodium citrate dihydrate occurs as white, granular crystals or as white, crystalline powder with a pleasant, salty taste.