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Chemical formula. AlPO 4 Molar mass: 121.9529 g/mol Appearance White, crystalline powder ... Phosphorus: chemistry, biochemistry and technology ...
Aluminium dihydrogenphosphate describes inorganic compounds with the formula Al(H 2 PO 4) 3. xH 2 O where x = 0 or 3. They are white solids. Upon heating these materials convert sequentially to a family of related polyphosphate salts including aluminium triphosphate (AlH 2 P 3 O 10. 2H 2 O), aluminium hexametaphosphate (Al 2 P 6 O 18), and aluminium tetrametaphosphate (Al 4 (P 4 O 12) 3).
Berlinite (aluminium phosphate, chemical formula AlPO 4 or Al(PO 4)) is a rare high-temperature hydrothermal or metasomatic phosphate mineral. [5] It has the same crystal structure as quartz with a low temperature polytype isostructural with α–quartz and a high temperature polytype isostructural with β–quartz. [3]
The phosphate ion has a molar mass of 94.97 g/mol, and consists of a central phosphorus atom surrounded by four oxygen atoms in a tetrahedral arrangement. It is the conjugate base of the hydrogen phosphate ion H(PO 4) 2−, which in turn is the conjugate base of the dihydrogen phosphate ion H 2 (PO 4) −
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A polymer is a substance composed of macromolecules. The latter usually have a range of molar masses (unit g mol −1), the distributions of which are indicated by dispersity (Đ). It is defined as the ratio of the mass-average molar mass (M m) to the number-average molar mass (M n) i.e. Đ = M m /M n. [4]
Vanadium(III) phosphates lacking the oxo ligand have the formula VPO 4 •H 2 O and VPO 4 •2H 2 O. The monohydrate is isostructural with MgSO 4 •H 2 O [8] It adopts the structure of the corresponding hydrated aluminium phosphate. Oxidation of VPO 4 •H 2 O yields the two-electron electroactive [9] material ε-VOPO 4 [10]
Hydrated copper(II) phosphate precipitates upon addition of a solution of alkali metal phosphate to an aqueous solution of copper(II) sulfate. [4] The anhydrous material can be produced by a high-temperature (1000 °C) reaction between diammonium phosphate and copper(II) oxide.