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Magnesium Sulfate Anhydrate (CAS 7487-88-9)
Magnesium sulfate or magnesium sulphate (in British English) is a chemical compound, a salt with the formula MgSO4, consisting of magnesium cations Mg2+ (20.19% by mass) and sulfate anions SO2−4. It is a white crystalline solid, soluble in water but not in ethanol.
Magnesium sulfate is usually encountered in the form of a hydrate MgSO4·nH2O, for various values of n between 1 and 11. The most common is the heptahydrate MgSO4·7H2O, known as Epsom salt, which is a household chemical with many traditional uses, including bath salts.
The main use of magnesium sulfate is in agriculture, to correct soils deficient in magnesium (an essential plant nutrient because of the role of magnesium in chlorophyll and photosynthesis). The monohydrate is favored for this use; by the mid 1970s, its production was 2.3 million tons per year. The anhydrous form and several hydrates occur in nature as minerals, and the salt is a significant component of the water from some springs.
Information
Industries: Paints and varnishes, Pharmaceutical industry, Feed industry, Building chemistry
CAS number: 7487-88-9
WE number: 231-298-2
Chemical formula: MgSO4
Molar mass: 120,37 g/mol
Customs tariff code: 28332100
Other physical properties
pH: ~9 (25°C )
Melting / freezing point: 1130°C
Relative density: 2,7 g/cm3 (20°C )
Solubility in water: 342 g/l (20°C )
| Weight | N/A |
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| Käytettävissä oleva määrä |
