Food additives Magnesium Sulphate

Molecular Formula: MgSO4nH2O(n=0,1,2,3,4,5,6,7)
Molecular Weight: 120.37+18n (n= 0,1,2,3,4,5,6,7)
CAS No: 10034-99-8 (MgSO4.7H2O)
7487-88-9 (MgSO4 )

Specification (Up to GB29207-2012 )

Grade Item Magnesium
Sulphate
Heptahydrate Magnesium
Sulfate
Pentahydrate Magnesium
Sulphate
Trihydrate Magnesium
;Sulfate
Dihydrate Magnesium
Sulphate
Monohydrate Magnesium
Sulfate
Anhydrate
Appearance White Crystals White powder
Or granule White powder
Or granule White powder
Or granule White powder
Or granule White powder
Or granule
Assay %min 99.5 99 99 99 99 98
MgSO4%min 48.59 56 68 76 86 98
PH(5% Solution) 5.5-7.5 5.5-7.5 5.5-7.5 5.5-7.5 5.5-7.5 5.5-7.5
Iron(Fe)%max 0.002 0.002 0.002 0.002 0.002 0.002
Chloride(Cl)%max 0.03 0.03 0.03 0.03 0.03 0.03
Lead(Pb)%max 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002
Arsenic(As)%max 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003