Product Name
Magnesium sulfate
Category
Metal & Ceramic Materials
Description
Magnesium sulfate is an inorganic salt (chemical compound) containing magnesium, sulfur and oxygen, with the formula MgSO4.It is often encountered as the heptahydrate sulfate mineral epsomite (MgSO4·7H₂O), commonly called Epsom salt, taking its name from a bitter saline spring in Epsom in Surrey, England, where the salt was produced from the springs that arise where the porous chalk of the North Downs meets non-porous London clay. The monohydrate, MgSO4·H₂O is found as the mineral kieserite. The overall global annual usage in the mid-1970s of the monohydrate was 2.3 million tons, of which the majority was used in agriculture.Anhydrous magnesium sulfate is used as a drying agent. The anhydrous form is hygroscopic (readily absorbs water from the air) and is therefore difficult to weigh accurately; the hydrate is often preferred when preparing solutions (for example, in medical preparations). Epsom salt has been traditionally used as a component of bath salts. Epsom salt can also be used as a beauty product. Athletes use it to soothe sore muscles, while gardeners use it to improve crops.
Synonyms
Magnesium sulfate anhydrous
IUPAC Name
Magnesium;sulfate
Canonical SMILES
[O-]S(=O)(=O)[O-].[Mg+2]
InChI
InChI=1S/Mg.H₂O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
InChI Key
CSNNHWWHGAXBCP-UHFFFAOYSA-L
Boiling Point
330ºC at 760 mmHg
Density
1.07 g/mL at 20 °C (lit.)
Solubility
Soluble in water, slightly soluble in alcohol, glycerol, insoluble in acetone
Appearance
Slightly gray powder
Hazard Statements
Xi: Irritant;
Monoisotopic Mass
119.9367713
Safety Description
S22-S24/25-S36-S26
Stability
Stable. Hygroscopic.
Storage Conditions
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Topological Polar Surface Area
88.6 Ų
Vapor Pressure
<0.1 mm Hg ( 20 °C)
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