Cupric cyanide
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Cupric cyanide
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CAS No:
14763-77-0
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Formula:
C2CuN2
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Chemical Name:
Cupric cyanide
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Synonyms:
Cupric cyanide;Copper(Ⅱ)cyanide;copper dicyanide;Cupric cyanide ISO 9001：2015 REACH
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CAS No:
Description
Cuprous cyanide is a white crystalline substance. Cupric cyanide, Cu(CN)2 is a yellowish-green powder which decomposes on heating. Molecularweight =89.56 (cuprous); 115.55 (cupric); Freezing/Melting point =473℃ (in nitrogen) (cuprous cyanide).Hazard Identification (based on NFPA-704 M RatingSystem): Health 3, Flammability 0, Reactivity 0. Insolublein water.
Cupric cyanide is a yellowish-green powder which decomposes on heating.
Poison by intraperitoneal route. See also CYANIDE and COPPER COMPOUNDS. Incompatible with magnesium. When heated to decomposition it emits toxic fumes of NOx and CN-.
Copper cyanide is used in electroplating copper on iron; and as an insecticide and a catalyst.
Copper cyanide must carry a “POISONOUS/TOXIC MATERIALS” label. It is classified by DOT inHazard Class 6.1 and Packing Group II.
Characteristics
71.64000
decomposes [CRC10]
41°C (estimate)
-80 ° (C=5, MeOH)
insoluble H2O; soluble acids and alkalies [HAW93]
Intraperitoneal injection-rat LDL0: 50 mg/kg
Combustible, fires emit copper, nitrogen oxides spicy and irritating smoke
Safety Information
II
6.1(a)
1587
S24/25:Avoid contact with skin and eyes .
Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with coppercyanide you should be trained on its proper handling andstorage. Copper cyanide must be stored to avoid contactwith chemically active metals (such as potassium, sodium,magnesium, and zinc) since violent reactions occur. Storein tightly closed containers in a cool, well-ventilated areaaway from acetylene gas.
Explosive when mixed with chlorate, sodium nitrite (potassium)
Toxic.
Contact with heat, strong acids (HCl, H2SO4, HNO3) forms deadly hydrogen cyanide gas. May release hydrogen cyanide on contact with moisture. Incompatible with strong oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, acetylene gas, and chemically active metals, such as potassium, sodium, magnesium, and zinc.
1587
Cupric cyanide Use and Manufacturing
Copper cyanide is an inorganic compound that can be used in the metallurgical industry, copper plating processes, and organic synthesis.
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