Copper(I) chloride
Copper(I) chloride, also known as cuprous chloride, is a chemical compound. Its chemical formula is CuCl. It contains copper in its +1 oxidation state. It also contains chloride ions.
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Properties change
Copper(I) chloride is white when pure. It does not dissolve in water. It is green when in air because of conversion to copper(II) chloride. It can react with Lewis bases, a group of chemicals. It dissolves in hydrochloric acid easily. It dissolves in solutions that have ammonia in them. It absorbs carbon monoxide. It easily disproportionates into copper and copper(II) chloride. It reacts with ammonia and acetylene to make copper(I) acetylide, a reddish explosive.
Preparation change
It can be made by reduction of copper(II) chloride. It was made at first by reacting copper with mercury(II) chloride. It can be made by heating copper(II) chloride very hot. Some chlorine is released, and copper(I) chloride is left behind.
Uses change
Copper(I) chloride is used to make a fungicide, which is used to kill fungi. It is also used to make many organic compounds.