Magnesium Sulfate BP
Magnesium sulfate is an inorganic salt with the formula MgSO4(H2O)x where 0≤x≤7. It is often encountered as the heptahydrate sulfate mineral epsomite (MgSO4·7H2O), commonly called Epsom salt.
Magnesium sulfate is a common mineral pharmaceutical preparation of magnesium, commonly known as Epsom salt, used both externally and internally. Magnesium sulfate is used as a brewing salt in making beer. It may also be used as a coagulant for making tofu.
Chemical Name: Magnesium Sulfate
Mol. Formula: MgSO4.7H2O
Mol. Weight: 246.5 g/mol
CAS No: 10034-99-8
Other name: Epsom Salt
|Characters||It occurs as a white, crystalline powder or brilliant, colorless crystals|
(a)It gives the reaction of sulfates
(b)It gives the reaction of magnesium
|Solubility||Freely soluble in water, very soluble in boiling water, practically insoluble in ethanol (96%)|
|Appearance of solution||The solution is clear and colorless|
|Acidity or alkalinity||Specified test|
|Chlorides||Not more than 300 ppm|
|Arsenic||Not more than 2 ppm|
|Iron||Not more than 20 ppm|
|Heavy Metals||Not more than 10 ppm|
|Loss on drying||48.0% to 52.0%|
|Assay||Not less than 99.0% and not more than 100.5% (dried substance)|
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
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