Certificate of Analysis

Product Name COBALT (II) OXIDE (black) AR
CAS Number 1308-06-1
Molecular Formula Co3O4
Catalogue No. AL0517A
Molecular Weight 240.80 g/mol
Batch Number AL-2026-AL0517A
Manufacturing Date September-2026
Expire Date September-2031
Type of Test Standard Observed
Description Black powder Black powder
Assay (as Co) Min. 71.0% 71.82%
Total sulphur (S) <0.001% <0.001%
Lead (Pb) <0.001% 0.0009%
Iron (Fe) <0.01% <0.01%
Result: The above product complies with AR grade

Tested By

Hitesh Kunjathur Tested By Stamp

Analysed By

Preeti Rane Analysed By Stamp
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