Search results
Results from the WOW.Com Content Network
Magnesium sulfate or magnesium sulphate is a chemical compound, a salt with the formula MgSO 4, consisting of magnesium cations Mg 2+ (20.19% by mass) and sulfate anions SO 2− 4. It is a white crystalline solid , soluble in water but not in ethanol .
Epsomite, Epsom salt, or magnesium sulfate heptahydrate, is a hydrous magnesium sulfate mineral with formula MgSO 4 ·7H 2 O. Physical properties
Kieserite, or magnesium sulfate monohydrate, is a hydrous magnesium sulfate mineral with formula (MgSO 4 ·H 2 O). It has a vitreous luster and it is colorless, grayish-white or yellowish. Its hardness is 3.5 and crystallizes in the monoclinic crystal system. Gunningite is the zinc member of the kieserite group of minerals. [5]
Magnesium borate, magnesium salicylate, and magnesium sulfate are used as antiseptics. Magnesium bromide is used as a mild sedative (this action is due to the bromide, not the magnesium). Magnesium stearate is a slightly flammable white powder with lubricating properties.
The chemical properties of MgS resemble those of related ionic sulfides such as those of sodium, barium, or calcium. It reacts with oxygen to form the corresponding sulfate, magnesium sulfate. MgS reacts with water to give hydrogen sulfide and magnesium hydroxide. [3]
Magnesium sulfide can be produced by the reaction of magnesium and hydrogen sulfide, or by the reaction of magnesium sulfate and carbon disulfide at high temperature: [6] Mg + H 2 S → MgS + H 2 3 MgSO 4 + 4 CS 2 → 3 MgS + 4 COS + 4 SO 2. It can be hydrolyzed to Mg(HS) 2, and further hydrolyzed to Mg(OH) 2 at higher temperatures.
A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection.
Meridianiite is the mineral consisting of magnesium sulfate undecahydrate, MgSO 4 ·11H 2 O.It is colorless transparent crystalline salt that precipitates from solutions saturated in Mg 2+ and SO 4 2− ions at temperatures less than 2 °C. [4]