Solid phase
Official name
Cobalt(II) phosphate
Secondary names
cobalt(2+);diphosphate; Cobaltous phosphate; Phosphoric acid, cobalt(2+) salt (2:3); Tricobalt bis(orthophosphate)
CAS number
13455-36-2
Type
Family
ionic solid
Class
normal salt
Compound type
phosphate
Chemical composition
Formula
(Co2+)3⋅(PO3−4)2
Chemical formula
Co3(PO4)2
Elemental formula
(Co2+)3 P2 O2 (O-)6
Isotope mixture type
terrestrial abundance
10.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
Co2+ Cobaltous cation element 3 0.6 1 constituent cation main
(PO4)3− Phosphate anion chemical function 2 0.4 1 anionic radical main
Chemical functions
  Function Number
(PO4)3− 2
Chemical bonds
  Bond Number
⋅Co2+⋅O−− 3
⃛−⃛−⃛−P⃛−O−3/4 4
Class
normal salts (07)
Type
simple normal salts (07.01)
Phase type
crystalline
Molar mass
366.742 g/mol
Density
3.81 g/cm3
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid 1430K (1160 °C)
Refraction index nα
1.7
Pure color
violet
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