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Bischofite is a hydrous magnesium chloride mineral with formula MgCl 2 ·6H 2 O. It belongs to halides and is a sea salt concentrate. It contains many macro- and micro-elements vital for human health, in much higher concentrations than can be found in sea or ocean salt.
Anhydrous MgCl 2 is produced industrially by heating the complex salt named hexamminemagnesium dichloride [Mg(NH 3) 6] 2+ (Cl −) 2. [2] The thermal dehydration of the hydrates MgCl 2 ·nH 2 O (n = 6, 12) does not occur straightforwardly. [8] As suggested by the existence of hydrates, anhydrous MgCl 2 is a Lewis acid, although a weak one.
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In chemistry, the molar mass (M) (sometimes called molecular weight or formula weight, but see related quantities for usage) of a chemical compound is defined as the ratio between the mass and the amount of substance (measured in moles) of any sample of the compound. [1] The molar mass is a bulk, not molecular, property of a substance.
The terms "molecular mass", "molecular weight", and "molar mass" may be used interchangeably in less formal contexts where unit- and quantity-correctness is not needed. The molecular mass is more commonly used when referring to the mass of a single or specific well-defined molecule and less commonly than molecular weight when referring to a ...
Carnallite's chemical formula is K Mg Cl 3 ·6(H 2 O). Synthetic carnallite crystal specimens can be produced from 1.5 mole percent KCl and 98.5 mole percent MgCl 2 ·6H 2 O by slow crystallization at 25 °C. [8] Its density is 1.602 g/cm 3. [8] Carnallite can also be produced by grinding the combination of hydrated magnesium chloride and ...
m(NaCl) = 2 mol/L × 0.1 L × 58 g/mol = 11.6 g. To create the solution, 11.6 g NaCl is placed in a volumetric flask, dissolved in some water, then followed by the addition of more water until the total volume reaches 100 mL. The density of water is approximately 1000 g/L and its molar mass is 18.02 g/mol (or 1/18.02 = 0.055 mol/g). Therefore ...
Triphenylphosphine forms a labile 2:1 adduct: MnCl 2 + 2 Ph 3 P → [MnCl 2 (Ph 3 P) 2] Anhydrous manganese(II) chloride serves as a starting point for the synthesis of a variety of organomanganese compounds. For example, manganocene is prepared by reaction of MnCl 2 with a solution of sodium cyclopentadienide in tetrahydrofuran (THF).