* Product : Zinc Sulphate Heptahydrate-LR Grade.
* Description : White crystal or crystalline powder
* Assay : 99.0% Min.
* pH : 4.0 to 6.0
* Chloride : 0.01% Max.
* Arsenic : 0.02% Max.
* Iron : 0.02% Max.
* Copper : 0.02% Max.
* Lead : 0.02% Max.
* Cadmium : 0.02% Max.
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