CERTIFICATE OF ANALYSIS

Product Name	SELENIUM POWDER BLACK AR	CAS Number	7782-49-2
Molecular Formula	Se	Catalogue No.	AL3966
Molecular Weight	78.96	Batch Number
Manufacturing Date	December-2020	Expire Date	November-2025

TYPE OF TEST	STANDARD	OBSERVED
Description Assay Melting point Nitric acid insoluble matter Loss on drying Non-volatile matter Nitrogen compounds (N) Copper (Cu) Iron (Fe) Sulphur (S) Tellurium (Te)	Black powder (Min.) 99.50% 220 – 222°C <0.01% <0.05% <0.05% <0.02% <0.01% <0.006% <0.0015% <0.005%	Black powder 99.81% 220°C <0.01% 0.04% 0.039% 0.01% <0.01% 0.0041% 0.0009% <0.005%

Result: The above product complies with AR grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane