Copper(II) selenite

Copper(II) selenite is an inorganic salt frequently found as its dihydrate, CuSeO₃·2H₂O, in the form of a blue powder.^[2][3]

Copper(II) selenite

Names
IUPAC name Copper(II) selenite
Other names Copper selenite dihydrate
Identifiers
CAS Number	10214-40-1 Y 15168-20-4 (dihydrate) Y
3D model (JSmol)	Interactive image
ChemSpider	21241696 dihydrate
ECHA InfoCard	100.030.465
EC Number	233-526-6
PubChem CID	160923 anhydrous 71317452 monohydrate 24884280 dihydrate
UNII	G2Y4101Z3O Y B084V60QBP (dihydrate) Y
CompTox Dashboard (EPA)	DTXSID20907163
InChI InChI=1S/Cu.H2O3Se/c;1-4(2)3/h;(H2,1,2,3)/q+2;/p-2 Key: JNRBLFVQPTZFAG-UHFFFAOYSA-L
SMILES [O-][Se](=O)[O-].[Cu+2]
Properties
Appearance	Blue[1]
Solubility	Insoluble in water[1] Slightly soluble in benzene and acids[1]
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H371, H410
Precautionary statements	P260, P261, P264, P270, P271, P273, P301+P310, P304+P340, P311, P314, P321, P330, P391, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Preparation

Copper(II) selenite can be prepared from copper(II) acetate and selenous acid.^[2][4]

Uses

Copper(II) selenite can be used a catalyst for Kjeldahl digestion.^[2]

See also

• Selenite
• Selenous acid