Copper(I) phosphide

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Copper(I) phosphide
IUPAC name copper(I) phosphide
Other names copper phosphide, cuprous phosphide
Identifiers
CAS number [12019-57-7]
Properties
Molecular formula Cu3P
Molar mass 221.6127 g/mol
Appearance yellowish grey crystals
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Copper phosphide, Cu3P, also copper(I) phosphide, cuprous phosphide, cuprophosphorus and phosphor copper, is a compound of copper and phosphorus, a phosphide of copper. It has the appearance of yellowish-grey very brittle mass of crystalline structure. It does not react with water. Its CAS number is [12019-57-7].

Copper phosphide has a role in copper alloys, namely in phosphor bronze. It is a very good deoxidizer of copper.

Copper phosphide can be produced in a reverberatory furnace or in a crucible, eg. by a reaction of red phosphorus with a copper-rich material. It can also be prepared photochemically, by irradiating cupric hypophosphite with ultraviolet radiation. [1]

When subjected to ultraviolet light, copper phosphide shows fluorescence.

A blue-black film of copper phosphide forms on white phosphorus when subjected to a solution of copper salt; wounds containing particles of phosphorus therefore have to be washed with 1% solution of copper sulfate. The particles then can be easily removed, which is helped by their fluorescence. [2] Formation of protective layer of copper phosphide is also used in cases of phosphorus ingestion, when gastric lavage with copper sulfate is employed as part of the cure. [3]

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