Copper(I) hydroxide

Copper(I) hydroxide
Names
Other names
Cuprous hydroxide; Copper monohydroxide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/Cu.H2O/h;1H2/q+1;/p-1
    Key: ZMHWUUMELDFBCZ-UHFFFAOYSA-M
  • [OH-].[Cu+]
Properties
CuOH
Molar mass 80.55 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Copper(I) hydroxide is the inorganic compound with the chemical formula of CuOH. Little evidence exists for its existence. A similar situation applies to the monohydroxides of gold(I) and silver(I). Solid CuOH has been claimed however as an unstable yellow-red solid.[1] The topic has been the subject of theoretical analysis.[2] Copper(I) hydroxide would also be expect to easily oxidise to copper(II) hydroxide:

4CuOH + 2 H2O + O2 → 4Cu(OH)2

It would also be expected to rapidly dehydrate:

2CuOH → Cu2O + H2O

Solid CuOH would be of interest as a possible intermediate in the formation of copper(I) oxide (Cu2O), which has diverse applications.[3] e.g.forapplications for use in solar cells.[4]

  1. ^ Soroka, Inna L.; Shchukarev, Andrey; Jonsson, Mats; Tarakina, Nadezda V.; Korzhavyi, Pavel A. (2013). "Cuprous hydroxide in a solid form: does it exist?". Dalton Transactions. 42 (26): 9585–94. doi:10.1039/C3DT50351H. PMID 23673918.
  2. ^ Korzhavyi, P.A.; Soroka, I.; Boman, M.; Johansson, B. (2011). "Thermodynamics of stable and metastable Cu-OH compounds". Solid State Phenomena. 172: 973–78. doi:10.4028/www.scientific.net/SSP.172-174.973. S2CID 137644376.
  3. ^ Cite error: The named reference Illas was invoked but never defined (see the help page).
  4. ^ "Thin film deposition of Cu2O and Application for Solar Cells". Solar Energy. 1, 80 (6): 715–22. 2006. doi:10.1016/j.solener.2005.10.012.