Hazard and Precautionary Statements (GHS)

Beryllium Arsenates Chemical Properties,Usage,Production

Description

Beryllium arsenate salts are less stable than those of magnesium and readily form basic salts. This is due to the fact that Be²⁺ preferentially forms hydroxy complexes of the type, Be(OH)⁺ in association with water molecules. Species such as Be2(OH)³⁺ and Be3(OH)3 ²⁺ are known to exist. The hydroxylation reaction has been given as:
xBe²⁺ + yH2O ? Bex(OH)y ^2x-y+ + yH⁺
where x and y can vary from 1 to 8. Species such as Be3(OH)7³⁺ and Be4(OH)8⁴⁺ are known. Thus, the prior literature may be in doubt as to exact formulas for beryllium compounds prepared from aqueous solutions.