Cobalt(II) phosphate hydrates | SSHADE

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Solid phase

Official name: Cobalt(II) phosphate hydrates

Name and identifiers

Secondary names: Cobaltous phosphate hydrates; cobalt(2+);diphosphate hydrates

Family: ionic solid
Class: normal salt
Compound type: phosphate

Chemical composition

Formula: $(Co^{2+})_3.(PO_4^{3-})_2 \bullet nH_2O$
Chemical formula: Co3(PO4)m.nH2O
Elemental formula: (Co2+)3 P2 (O)2-10 (O-)6 (H)0-16
Isotope mixture type: terrestrial abundance

18.0

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$Co^{2+}$	Cobaltous cation	element	3	0.3333333333333333	1	constituent cation	main
	$(PO_4)^{3-}$	Phosphate anion	chemical function	2	0.2222222222222222	1	anionic radical	main
	$H_2O$	Water	molecule	0 - 8	0.4444444444444444 $\pm$ 0.4444444444444444	1	hydration	main

Chemical functions and bonds

Chemical functions

	Function	Number
	$(PO_4)^{3-}$	2
	$R-OH$	2

Chemical bonds

	Bond	Number
	$\cdot Co^{2+} \cdot O^{-}-$	3
	$-O-H$	2
	$\dddot - \dddot - \dddot - P \dddot - O^{-3/4}$	4

Class: normal salts (07)
Type: hydrated simple normal salts (07.04)

Endmembers and polymorphs

Endmembers

Crystallography

Phase type: crystalline
Crystal system: various

Physical properties

Molar mass: 366.742 - 438.80 $g/mol$
Density: 2.6 - 3.81 $g/cm^3$

Thermodynamical properties

State NTP: solid

Optical properties

Pure color: pale violet to violet, pale red

Links and Publications

Links

Wikipedia webpage