We are offering magnesium sulphate chemical name magnesium sulphatecas no. 10034-99-8color & physical form colorless prismatic crystalsactive ingredient mgso4. 7h2oassay nlt 98 %molecular wt. 246.31ph (5% solution) 5.0 8.2chloride nmt 0.02%iron nmt 0.05 %heavy metals (as pb) nmt 0.002 % one of the major uses of magnesium sulfate is in agriculture and gardening where it is used as a fertilizermagnesium sulfate is used in bath salts.magnesium sulfate heptahydrate is also used to maintain the magnesium concentration in marine aquariamagnesium sulfate is used as the electrolyte to prepare copper sulfatemagnesium sulfate is used as a brewing salt in beer production to adjust the ion content of the brewing waterit is used in paper making industrymagnesium sulphate heptahydrate is also used as laboratory reagentpacking : 25 kg pp bag with hdpe liner inside