Address
No.8 Huayou 3rd Road, Xinwu District, Wuxi City, Jiangsu Province, China
English
1. Chemical Name: MAGNESIUM SULFATE ANHYDROUS/ MAGNESIUM SULFATE HEPTAHYDRATE
2. Molecular Formula: MgSO4/ MgSO4·7H2O
3. Molecular Weight: 120.37/246.47
4. CAS: 7487-88-9/10034-99-8
5. Packing: It is packed with polyethylene bag as inner, and a composite paper bag as the outer layer. The net weight of each bag is 25kg.
6. Storage and Transport: It should be stored in a dry, ventilating and cleaning warehouse, kept away from moisture and hot. Furthermore, it should be stored separately from poisonous.
7. Shelf life: 24 months
MgSO4 is a compound composed of magnesium, sulfur, and oxygen. Chemical reaction process: In this equation, the solid magnesium sulfate heptahydrate (MgSO4·7H2O) is heated, resulting in the formation of anhydrous magnesium sulfate (MgSO4) and the release of 7 water molecules (H2O(g)). This equation represents the process of the crystalline water molecules escaping, leading to the formation of anhydrous magnesium sulfate. MgSO4·7H2O(s) → MgSO4(s) + 7H2O(g).
| Specification | GB29207-2012 | FCC V |
| Content (As MgSO4) ≥w/% | 99.0% | 99.5% |
| Heavy Metals (As Pb) ≤mg/kg | 10mg/kg | - |
| Lead ≤mg/kg | 2mg/kg | 4mg/kg |
| Selenium ≤mg/kg | 30mg/kg | 30mg/kg |
| PH Value (50g/L solution) | 5.5-7.5 | - |
| Chloride ≤w/% | 0.03% | - |
| Arsenic ≤mg/kg | 3mg/kg | - |
| Iron ≤mg/kg | 20mg/kg | - |
| Loss on Ignition w/% | ≤2/40.0-52.0% | 40.0-52.0% |
It's colorless prismatic or needle-shaped crystal. It's odorless. It tastes cool, salty and bitter. Relative density is 2.65.
It's steady in damp air under 48℃. When it is in warm and hot air, it is easily effloresce.
It is easily soluble in water (119.8%, 20℃) and glycerine, slightly soluble in ethanol. The aqueous solution is neutral.
In food industry, it is used as nutritional supplement, solidification, the flavor increase, process helper, brew additive. It is used as nutritional supplement to improve ferment in brew and the improvement of the synthesizes drink taste（0.002%）. It also can adjust the aqueous degree of hardness.
The solid magnesium sulfate heptahydrate is heated, and the crystalline water (H2O) gradually evaporates, converting into gaseous water vapor (H2O(g)), while anhydrous magnesium sulfate (MgSO4(s)) is formed. This process can be carried out under appropriate experimental conditions, such as heating the magnesium sulfate heptahydrate to high temperatures, typically between 200°C and 250°C. Through heating, the molecules of crystalline water escape, resulting in the formation of dried magnesium sulfate .MgSO4·7H2O(s) → MgSO4(s) + 7H2O(g).
