Cas no. | 1317-38-0 |
CuO | M.W. 79.55 |
Minimum assay ( by iodometry ) | 99% |
Maximum Limits of Impurities. | |
Substances insoluble | 0.02% |
in nitric acid | passes test |
Free alkali | 0.005% |
Chloride ( CI ) | 0.01% |
Total sulphur ( as SO4) | 0.01% |
Total nitrogen ( N ) | 0.002% |
Lead ( Pb ) | 0.05% |
Iron ( Fe ) | 0.05% |
Substances not precipitated | |
by H2 S ( as sulphate ) | 0.02% |
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