White shapeless powder; odorless; relative density: 3.18; hardly soluble in water but easily soluble in diluted Hydrochloric Acid and Nitric Acid; stable in air.In food industry, it is used as anti-caking agent, nutritional supplement (calcium intensifier), PH regulator and buffer, e.g. to act as anti-caking agent in flour, additives in milk powder, candy, pudding, condiment, and meat; as auxiliary in refinery of animal oil and yeast food.