... , fertilizer, additive, and for industry and agriculture applications Magnesium Sulfate (Tech grade)ApperenceClourless pillarPuirty99% minMgSO448.59% minMgO16.27% ... %maxAs0.0002% maxInsoulable matter0.01%max Magnesium Sulfate (Food grade)ApperenceClourless pillarPurity99.5% minMgSO448.59% minMgO16. ... 0.1-1mm, 0.1-3mm · Chemical Name: Magnesium Sulfate · Formula: MgSO4·7H2O · Molecular Weight: 246.47 ...