Specifications

Tech grade

Food grade

Main assay (As Na₄P₂O₇)

96.5% min

96.5% min

Phosphorus pentoxide ( P₂O₅)

51.5% min

51.5% min

Water insoluble matter

0.20% max

0.20% max

PH value of 1% solution

9.9-10.7

9.9-10.7

Heavy metals as Pb

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0.001%max

Arsenic as As

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0.0003%max

Fluoride (As F )

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0.005%max