Magnesium Sulfate, Anhydrous

Assay (Ignited basis):99.8%99.0-100.5%
pH (5% solution at 25°C): 6.65.0 - 9.2
Heavy metals: <10 ppm10 ppm max.
Chloride: 0.01%0.014% max.
Iron: <10 ppm20 ppm max.
Loss on drying: 0.2%2.0% max.
Selenium: <30 ppm30 ppm max.
Organic volatile impurities: nonemeets requirements
Identification: passes 
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