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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] The synthetic compound was formerly known as Fritzsche's salt. [4] [5]
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.
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.
Sodium magnesium sulfate is a double sulfate of sodium and magnesium. There are a number of different stoichiometries and degrees of hydration with different crystal structures, and many are minerals. Members include: Blödite or bloedite: sodium magnesium sulfate tetrahydrate Na 2 Mg(SO 4) 2 •4H 2 O [1]
Solutions containing magnesium sulfate are generally more aggressive, for the same concentration. This is because magnesium also takes part in the reactions, replacing calcium in the solid phases with the formation of brucite (magnesium hydroxide) and magnesium silicate hydrates. The displaced calcium precipitates mainly as gypsum.
Classical qualitative inorganic analysis is a method of analytical chemistry which seeks to find the elemental composition of inorganic compounds. It is mainly focused on detecting ions in an aqueous solution , therefore materials in other forms may need to be brought to this state before using standard methods.
Magnesium sulfite is the magnesium salt of sulfurous acid with the formula MgSO 3.Its most common hydrated form has 6 water molecules making it a hexahydrate, MgSO 3 ·6 H 2 O.When heated above 40 °C (104 °F), it is dehydrated to magnesium sulfite trihydrate, or MgSO
In the United Kingdom, a medication containing magnesium sulfate, called "drawing paste", is claimed to be useful for small boils or localised infections, [19] and removing splinters. [20] The standard British Pharmacopoeia composition is dried magnesium sulfate 47.76% (by mass), phenol 0.49%, and glycerol to balance. [19]