... many kinds of food grade Phosphoric acid (F.G.85%)MW: 98.00Executive Standard: GB3149-2004Usage: Acidity agent for acidic drinking liquid, acidity ... citric acid, for making many kinds of food grade phosphate, such as Tribasic sodium phosphate, Tribasic potassium phosphate, Triammonium phosphate, Calcium phosphate, Sodium aluminium phosphate, magnesium phosphate etc ...