Copper(I) cyanide
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Copper(I) cyanide | |
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Identifiers | |
CAS number | [544-92-3] |
EINECS number | |
Properties | |
Molecular formula | CuCN |
Molar mass | 89.5634 |
Hazards | |
MSDS | Oxford MSDS |
EU classification | Toxic (T) |
R-phrases | R26/27/28 R32 R50/53 |
S-phrases | (S1/2) S7 S24/25 S26 S28 S29 S45 S60 S61 |
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
Copper(I) cyanide (CuCN), also copper cyanide, cuprous cyanide, or cupricin is a white to cream colored or sometimes greenish powdery solid that is insoluble in water. Its chemical formula is CuCN. It is a poison that reacts violently with magnesium. When heated to decomposition, it emits very toxic fumes containing hydrogen cyanide, but it is not flammable itself.
Cuprous cyanide was used as a catalyst in polymerizations, in electroplating of copper and iron, and as insecticide, fungicide, and biocide in marine paints.