Silver phosphate

• Silver orthophosphate
• Silver (I ) phosphate

Yellow solid

Fixed

6,390 g · cm -3

849 ° C

• Very poorly soluble in water
• Soluble in nitric acid and ammonia

1,975

Attention

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Silver phosphate (specifically silver orthophosphate ) is an inorganic chemical compound. It is next to Silberpyrophosphat Ag4P2O7 ( CAS: 13465-97-9 ) and Silbermetaphosphat AgPO3 ( CAS: 13465-96-8 ) is one of the phosphates of silver.

Production and representation

Silver phosphate can be obtained by the reaction of potassium phosphate with silver nitrate.

Properties

Silver phosphate is a yellow solid, which is very poorly soluble in water and gradually turns black light. Ag3PO4 has a cubic crystal structure in the space group P43n with the lattice parameters a = 603 pm and two formula units per unit cell. At 520 ° C, the transition occurs in an equally high temperature cubic modification that crystallizes isotypic with γ - Na3PO4.

Use

Silver phosphate is used in photographic emulsions and in pharmaceuticals.