Solid phase
Official name
Silver(I) phosphate
Secondary names
Silver phosphate; Silver orthophosphate; phosphoric acid; phosphoric acid; argentous phosphate
CAS number
7784-09-0
Type
Family
ionic solid
Class
alkali salt
Compound type
phosphate
Chemical composition
Formula
(Ag+)3⋅PO3−4
Chemical formula
Ag3PO4
Elemental formula
(Ag+)3 P O (O-)3
Isotope mixture type
terrestrial abundance
8.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
Ag+ Silver cation element 3 0.75 1 constituent cation main
PO3−4 Phosphate ion molecule 1 0.25 1 constituent anion main
Chemical bonds
  Bond Number
Ag+⋅O−− 3
=P−O− 3
P=O 1
Class
alkali salts (06)
Type
simple alkali salts (06.01)
Phase name
Cubic silver phosphate
Phase type
crystalline
Crystal system
isometric (cubic)
Crystal class
hextetrahedral
Crystal class symbol
-43m (Td)
Crystal spacegroup
P-43n
Molar mass
418.576 g/mol
Density
6.37 g/cm3
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-solid γ−Ag3PO4 793 K (520°C)
solid-liquid liquid Ag3PO4 1122 K (849°C)
Refringence type
isotropic
Pure color
yellow
Diaphaneity
translucent
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