Molecular formula: MgSO4 · nH2O (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 ) 15320-30-6 (Dried MgSO4)
14168-73-1 (MgSO4·H2O)
Test method: GB 29207-2012
| Item | Specification | |
| MgSO4 (on dry basis) w/% ≧ | 99 | |
| Loss on Ignition w/% ≧ | Anhydrous (MgSO4) ≦ | 2 |
| Monohydrate (MgSO4.H2O) | 13.0~16.0 | |
| Trihydrate (MgSO4.3H2O) | 29.0~33.0 | |
| Heptahydrate (MgSO4.7H2O) | 40.0~52.0 | |
| MgSO4 Dried (MgSO4.nH2O) | 22.0~32.0 | |
| Heavy metal（calculated as Pb） / （mg/kg） | 10 | |
| Pb （mg/kg） ≦ | 2 | |
| Se （mg/kg） ≦ | 30 | |
| As（mg/kg） ≦ | 3 | |
| pH (50g/L Solution） | 5.5~7.5 | |
| Fe（mg/kg） ≦ | 20 | |
| Chloride w/% ≦ | 0.03 | |
Dietary Use of Magnesium Sulfate
1. Drinks
Magnesium sulfate can be used to make mineral water (life water, physiological water) and various beverages, and it can be used in sake to improve the flavor of sake;
It is used in the production of Bolton-type beer in Europe, and it is often used in combination with calcium salts in the mother water. Adding it can increase the hardness, but it should not be used too much, otherwise it will produce bitterness and H2S odor.
2. Food
Magnesium sulfate is used in the production of monosodium glutamate, fresh yeast, low sodium salt, health salt, nutritional salt, table salt.
In food additives, it is used for nutritional supplements, curing agents, flavor enhancers, processing aids.
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