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Magnesium phosphate is a general term for salts of magnesium and phosphate appearing in several forms and several hydrates: [1] Monomagnesium phosphate (Mg(H 2 PO 4) 2). xH 2 O; Dimagnesium phosphate (MgHPO 4). xH 2 O; Trimagnesium phosphate (Mg 3 (PO 4) 2). xH 2 O; Amorphous magnesium phosphate is also claimed. [2] Trimagnesium phosphate.
Kovdorskite, Mg 2 PO 4 (OH)·3H 2 O, is a rare, hydrated, magnesium phosphate mineral. It was first described by Kapustin et al., [6] and is found only in the Kovdor Massif near Kovdor, Kola Peninsula, Russia. [4] It is associated with collinsite, magnesite, dolomite, hydrotalcite, apatite, magnetite, and forsterite. [2]
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Magnesium salts are included in various foods, [100] fertilizers [101] (magnesium is a component of chlorophyll [102]), and microbe culture media. [103] Magnesium sulfite is used in the manufacture of paper (sulfite process). [104] Magnesium phosphate is used to fireproof wood used in construction. [105]
Struvite, also referred to as MAP, forms when there is a mole to mole to mole ratio (1:1:1) of magnesium, ammonia and phosphate in the wastewater. The magnesium can be found in soil, seawater as well as drinking water. Ammonia is broken down from the urea in wastewater, and phosphate, which is found through food, soaps and detergents.
Hazenite is a hydrous phosphate mineral with chemical formula of K Na Mg 2 (PO 4) 2 · 14 H 2 O, therefore a hydrous alkali magnesium phosphate.It is a member of the struvite group. [4]
Monomagnesium phosphate is one of the forms of magnesium phosphate. It is a magnesium acid salt of phosphoric acid with the chemical formula Mg(H 2 PO 4) 2. Di- and tetrahydrates are known also. It dissolves in water, forming phosphoric acid and depositing a solid precipitate of Mg(HPO 4). 3H 2 O, dimagnesium phosphate. [2]
Trimagnesium phosphate describes inorganic compounds with formula Mg 3 (PO 4) 2. xH 2 O. They are magnesium acid salts of phosphoric acid, with varying amounts of water of crystallization: x = 0, 5, 8, 22. [2] The octahydrate forms upon reaction of stoichiometric quantities of monomagnesium phosphate (tetrahydrate) with magnesium hydroxide.