CERTIFICATE OF ANALYSIS

Product Name	PHOSPHOTUNGSTIC ACID (hydrate) Extra Pure	CAS Number	12501-23-4
Molecular Formula	H 3 [P(W O 3 O 10 ) 4 ].XH 2	Catalogue No.	AL3553
Molecular Weight	2880.17	Batch Number
Manufacturing Date	December-2020	Expire Date	November-2025

TYPE OF TEST	STANDARD	OBSERVED
Description Substance insoluble in water Chloride (Cl) Sulphate (SO4) Total nitrogen (N) Lead (Pb) Iron (Fe) Copper (Cu) Loss on ignition at 750°C	White or yellowish green crystalline powder <0.01% <0.01% <0.01% <0.005% <0.005% <0.002% <0.001% <17%	White crystalline powder <0.01% <0.01% <0.01% <0.005% <0.005% 0.001% <0.001% 15.42%

Result: The above product complies with EP grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane