Copper Oxide Purity:99%, Production following the state standards used in producing glass,ceramic,fire works, etc.... Classification: Copper OxideCAS No.: 1317-38-0Other Names: Copper OxideMF: CuOEINECS No.: 215-270-7Place of Origin: Tianjin China (Mainland)Grade Standard: Agriculture Grade, Industrial G...Purity: 89%,98%, 99%Appearance: black powderApplication: indrustrail, agricultureBrand Name ...