Certificate of Analysis

Product Name FRENCH CHALK POWDER Extra Pure
CAS Number 14807-96-6
Molecular Formula MgO·4SiO2·H2O
Catalogue No. AL00756
Molecular Weight 379.27 g/mol
Batch Number AL-2026-AL00756
Manufacturing Date September-2026
Expire Date September-2031
Type of Test Standard Observed
Assay (Purity) ≥ 98% 99.5%
Moisture Content ≤ 0.5% 0.3%
Residue on Ignition ≤ 5% 2.0%
Related Substances None None detected
Solubility Insoluble in water Insoluble in water
Result: The above product is expected to comply with Extra Pure grade specification.

Tested By

Hitesh Kunjathur Tested By Stamp

Analysed By

Preeti Rane Analysed By Stamp
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