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Magnesium is a chemical element; it has symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity ...
6 Mg(OH) 2 + 6 Cl 2 → 5 MgCl 2 + Mg(ClO 3) 2 + 6 H 2 O. Magnesium perchlorate is a white powder that is easily soluble in water, which can be obtained by the reaction of magnesium oxide and perchloric acid. The hexahydrate crystallizes from the solution, and then it is dried with phosphorus pentoxide in a vacuum at 200~250 °C to obtain the ...
Organomagnesium chemistry, a subfield of organometallic compounds, refers to the study of magnesium compounds that contains Mg-C bonds. Magnesium is the second element in group 2 (alkaline earth metals), and the ionic radius of Mg 2+ is 86 pm, which is larger than Be 2+ (59 pm) and smaller than the heavier alkaline earth metal dications (Ca 2+ 114 pm, Sr 2+ 132 pm, Ba 2+ 149 pm), [1] in ...
Treating the solution of different soluble magnesium salts with alkaline water induces the precipitation of the solid hydroxide Mg(OH) 2: Mg 2+ + 2 OH − → Mg(OH) 2. As Mg 2+ is the second most abundant cation present in seawater after Na +, it can be economically extracted directly from seawater by alkalinisation as described here above.
The chemistry of the Mg 2+ ion, as applied to enzymes, uses the full range of this ion's unusual reaction chemistry to fulfill a range of functions. [56] [58] [59] [60] Mg 2+ interacts with substrates, enzymes, and occasionally both (Mg 2+ may form part of the active site).
Magnesium oxide (Mg O), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium (see also oxide).It has an empirical formula of MgO and consists of a lattice of Mg 2+ ions and O 2− ions held together by ionic bonding.
The energy to break up the dimer HMgMgH into two MgH radicals is 197 kJ/mol. Mg(μ-H 2)Mg has 63 kJ/mol more energy than HMgMgH. [38] In theory gas phase HMgMgH can decompose to Mg 2 and H 2 releasing 24 kJ/mol of energy exothermically. [38] The distance between the magnesium atoms in HMgMgH is calculated to be 2.861 Å. [39]
Magnesium sulfide is an inorganic compound with the formula Mg S. It is a white crystalline material but often is encountered in an impure form that is brown and non-crystalline powder. It is generated industrially in the production of metallic iron.