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Copper(II) selenite

Names
IUPAC name Copper(II) selenite
Other names Copper selenite dihydrate
Identifiers
CAS Number	10214-40-1 15168-20-4 (dihydrate)
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 B084V60QBP (dihydrate)
CompTox Dashboard (EPA)	DTXSID20907163
InChI InChI=1S/Cu.H2O3Se/c;1-4(2)3/h;(H2,1,2,3)/q+2;/p-2Key: JNRBLFVQPTZFAG-UHFFFAOYSA-L
SMILES (=O).
Properties
Appearance	Blue
Solubility	Insoluble in water Slightly soluble in benzene and acids
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 , 100 kPa). Infobox references

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

Preparation

Copper(II) selenite can be prepared from copper(II) acetate and selenous acid.

Uses

Copper(II) selenite can be used a catalyst for Kjeldahl digestion.

See also

• Selenite
• Selenous acid

References

1. ^ "Copper(II) selenite". Sigma-Aldrich.
2. ^ "Copper Selenite as a catalyst in the Kjeldahl nitrogen determination". Department of Chemistry, University of Wisconsin, Madison. November 1935.
3. "Sigma Aldrich - Copper(II) selenite dihydrate".
4. Hurd, Loren C.; Kemmerer, George I.; Meloche, V. W. (2002-05-01). "The Ammonates of Copper Selenite1". Journal of the American Chemical Society. 52 (10): 3881–3886. doi:10.1021/ja01373a018.

• Selenites
• Copper(II) compounds