Food Grade Precipitated Calcium Carbonate (PCC) Test ItemSpecificationCharacteristicClean odorless, fine white powder2.AIdentification(Carbonate, CO32-)Effervesce with acids, evolving a colorless gas ... Ca(OH)2, produces a white precipitate.2.BIdentification(Calcium salt, Ca2+)Moistened with HCL, impact a transient ... Mr.)Henan Kingway Chemicals Co., Ltd. Food Grade Precipitated Calcium Carbonate (PCC)