Cobalt Oxalate (II)

Cobalt oxalate
Cobalt oxalate
General
Systematic ; name	Cobalt Oxalate (II)
Traditional names	Cobalt oxalic acid
Chem. formula	CoC 2 O 4
Physical properties
condition	pink crystals
Molar mass	146.95 g / mol
Density	3.021 g / cm³
Thermal properties
T. decomp.	250 ° C
Chemical properties
Solubility in water	0.0037 20 g / 100 ml
Classification
Reg. CAS number	814-89-1, dihydrate - 5965-38-8
PubChem
Reg. EINECS number	212-409-3, dihydrate - 212-409-3
Smiles
Inchi
ChemSpider

Cobalt (II) oxalate is an inorganic compound, a salt of cobalt and oxalic acid with the formula CoC ₂ O ₄ , pink crystals, it does not dissolve in water, forms crystalline hydrates .

Content

1 Receiving
2 Physical properties
3 Chemical properties
4 Literature

Getting

Exchange reaction:

{\mathsf {CoSO_{4}+Na_{2}C_{2}O_{4}\ {\xrightarrow {}}\ CoC_{2}O_{4}\downarrow +Na_{2}SO_{4}}}

{\ displaystyle {\ mathsf {CoSO_ {4} + Na_ {2} C_ {2} O_ {4} \ {\ xrightarrow {}} \ CoC_ {2} O_ {4} \ downarrow + Na_ {2} SO_ {4 }}}}

Physical Properties

Cobalt (II) oxalate forms pink crystals.

Not soluble in water.

It forms crystalline hydrates of the composition CoC ₂ O ₄ • n H ₂ O, where n = 2, 2½ and 4.

Chemical Properties

Decomposes on heating:

{\mathsf {3CoC_{2}O_{4}\ {\xrightarrow {250^{o}C}}\ Co_{3}O_{4}+4CO+2CO_{2}}}

{\ displaystyle {\ mathsf {3CoC_ {2} O_ {4} \ {\ xrightarrow {250 ^ {o} C}} \ Co_ {3} O_ {4} + 4CO + 2CO_ {2}}}}

Literature

Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
CRC Handbook of Chemistry and Physics . - 89th Edition. - Taylor and Francis Group, LLC, 2008-2009.