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
$(Ag^+)_3 \cdot PO_4^{3-}$
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
$PO_4^{3-}$ Phosphate ion molecule 1 0.25 1 constituent anion main
Chemical bonds
  Bond Number
$Ag^+ \cdot O^{-}-$ 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 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-solid $\gamma -Ag_3PO_4$ 793 K (520°C)
solid-liquid liquid $Ag_3PO_4$ 1122 K (849°C)
Refringence type
isotropic
Pure color
yellow
Diaphaneity
translucent
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