Dicopper chloride trihydroxide

  • Copper (II) trihydroxidchlorid
  • Dicopper chloride trihydroxide
  • Basic copper chloride
  • CuCl2 · 3 Cu ( OH) 2
  • Also: Cu2 ( OH) 3Cl

Blue -green powder

Fixed

3.74 g · cm -3

> 220 ° C ( decomposition)

Practically insoluble in water ( 0.0012 g · l-1 at 20 ° C)

Attention

0.1 mg · m-3

700 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Copper oxychloride is a chemical compound of copper hydroxide and chlorine.

Production

Copper oxychloride can be prepared by hydrolysis of a copper ( II) chloride.

Or

Industrially it is produced by the oxidation of copper (I ) chloride in a brine solution. To copper ( II) chloride is reduced to a concentrated solution of sodium chloride with copper metal. The resulting copper ( I) chloride is then heated and oxidized in air to copper oxychloride.

Use

Copper oxychloride is used as a contact fungicide.

The approval of copper oxychloride as one of several " copper compounds " by the EU Commission took effect December 1, 2009 for applications as a bactericide and fungicide.

In Germany pesticides are approved with this drug for Growing of pome fruits and strawberries. In Austria and Switzerland, copper oxychloride preparations of potatoes and vines, and a variety of fruits, berries and vegetables are allowed.

CAS registry number PubChem Dangerous Substances Directive (67/548/EEC)
491894
de