Copper(I) hydroxide

Copper(I) hydroxide
Names
	Other names Cuprous hydroxide; Copper monohydroxide
Identifiers
CAS Number	19650-79-4;
3D model (JSmol)	Interactive image;
ChemSpider	8031144;
PubChem CID	9855444;
	InChI InChI=1S/Cu.H2O/h;1H2/q+1;/p-1 Key: ZMHWUUMELDFBCZ-UHFFFAOYSA-M;
	SMILES [OH-].[Cu+];
Properties
Chemical formula	CuOH
Molar mass	80.55 g/mol
Hazards
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 1 mg/m3 (as Cu)
REL (Recommended)	TWA 1 mg/m3 (as Cu)
IDLH (Immediate danger)	TWA 100 mg/m3 (as Cu)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Copper(I) hydroxide is the hydroxide of the metal copper with the chemical formula of CuOH. It is a mild, highly unstable alkali. The color of pure CuOH is yellow or orange-yellow, but it usually appears rather dark red because of impurities. It is extremely easily oxidized even at room temperature. It is useful for some industrial processes and in preventing condensation of formaldehyde. It is also an important reactant and intermediate for several important products including Cu₂O₃ and Cu(OH)₂. Additionally, it can act as a catalyst in the synthesis pyrimidopyrrolidone derivatives.

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