... 4.High quality and quick delivery citric acid anhydrateCalcium chloride anhydrate 94% granularAppearance:white ... . With other acids such as tartaric acid, malic acid and so on, to make the ... the formation of insoluble in water, sorbic acid - acid crystals, affecting food preservative effect. 2. Scope ... , the amount of acid according to the amount of raw materials, concentration ratio, the acidity ...