Food Grade Precipitated Calcium Carbonate (PCC) Test ItemSpecificationCharacteristicClean odorless, fine white powder2.AIdentification(Carbonate, ... into Ca(OH)2, produces a white precipitate.2.BIdentification(Calcium salt, Ca2+)Moistened with HCL, impact a transient yellowish red ... regards,Bob Chang (Mr.)Henan Kingway Chemicals Co., Ltd. Food Grade Precipitated Calcium Carbonate (PCC)