Copper(I) hydroxide

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Copper(I) hydroxide
Names
Other names
Cuprous hydroxide; Copper monohydroxide
Identifiers
  • 19650-79-4
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
Hazards
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 1 mg/m3 (as Cu)[1]
REL (Recommended)
 TWA 1 mg/m3 (as Cu)[1]
IDLH (Immediate danger)
 TWA 100 mg/m3 (as Cu)[1]
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,[2] but it usually appears rather dark red because of impurities. It is extremely easily oxidized even at room temperature.


Preparation[]

Another method is by the double displacement of CuCl and NaOH：

Notably, this method is rarely used because the CuOH produced will gradually dehydrate and eventually turn into Cu2O.

Reactions[]

Similar to iron(II) hydroxide , copper(I) hydroxide can easily oxidise into copper(II) hydroxide:


References[]

  1. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0150". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ 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.


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