The Chemical Characteristics Of Phosphate
In an acidic solution of phosphoric acid functional group under structure. Under the alkaline solution, the Group releases the two hydrogen atoms and ionization of phosphate with a formal charge of-2.  the phosphate ion is a polyatomic ion, its empirical formula PO43 −, and molecular weight was 94.97. It contains a phosphorus Atom surrounded by four oxygen atoms, forming a regular tetrahedron. Phosphate ion with a formal charge of-3, and is the hydrogen phosphate ion (HPO42 −) conjugate base hydrogen ion is the dihydrogen phosphate ion
(H2PO4 −) conjugate base; and the Dihydrogen ion is phosphoric acid (H3PO4) is the conjugate base. It is a hypervalent molecule (the phosphorus atom has 10 electrons in its valence shell). Phosphate is also an organic phosphorus compounds, their chemical formula OP (OR) 3.
Some alkali metals outer most phosphates, under standard conditions, it is insoluble in water.
In dilute aqueous phosphate exists in four forms. In an alkaline environment, the phosphate ion (PO43 −) more and in an environment of weak bases, hydrogen phosphate ion (HPO42 −) were found. In an environment of weak acids, dihydrogen phosphate ion (H2PO4 −) is more common; and in an environment of strong acid, aqueous phosphoric acid (H3PO4) is the main form.