Magnesium phosphate formula is the name of a group of salts composed of magnesium and phosphate ions in different proportions. In addition, these salts are widely used in the food industry. They are used as acidity regulators. Learn the magnesium phosphate formula here.
Formula and structure
If we talk about the chemical structure of magnesium phosphate, we will see that it is formed with the help of 1-3 magnesium ions Mg2+and 1-2 phosphate ions HPO4 -, PO43 -. Because salt is usually hydrated, its structure is surrounded by many water molecules. In addition, the main magnesium phosphate salts are called mono magnesium phosphate (Mg (H2PO4) 2, di magnesium phosphate MgHPO4 and tri magnesium phosphate Mg3 (PO4) 2). The molar weight of monomagnesium phosphate is 120.28 g/mol, while that of magnesium phosphate is 218.28 g/mol. Finally, the molar mass of tri magnesium phosphate is 262.85 g/mol.
Its chemical structure can be written as the following figure, using our common representation for organic molecules
happen
These phosphates are naturally formed. In addition, they can be found in minerals. For example, magnesium phosphate usually exists in the form of trihydrate and is a part of neoberyl, barite or sodophile.
prepare
Magnesium phosphate can be easily prepared by precipitation. In addition, it requires trisodium phosphate and magnesium chloride solution:
Sodium phosphate+3 magnesium chloride → 3 Na++6Cl –+Mg3PO4
Nevertheless, if we talk about the most common reaction for the production of magnesium phosphate, it is the reaction with magnesium oxide and phosphoric acid.