Monocalcium Phosphate (Food Additives) Formula：Ca(H2PO4)2?H2O Molecular：252．07 Specificity：White crystalIine powder,or plate crystal specific gravity 2．220,when heated to 100°C,it may loss crystal water.SoIuble in acid sIightIy acid and has hygroscopicity,acidic propetry appeared in a aqueous solution(PH3).