Copper cyanide

Names

[ CAS No. ]:
544-92-3

[ Name ]:
Copper cyanide

[Synonym ]:
EINECS 208-883-6
MFCD00010975
copper(i) cyanide

Chemical & Physical Properties

[ Density]:
2.92 g/mL at 25 °C(lit.)

[ Melting Point ]:
474 °C(lit.)

[ Molecular Formula ]:
CCuN

[ Molecular Weight ]:
89.56340

[ Flash Point ]:
140°C(lit.)

[ Exact Mass ]:
88.93270

[ PSA ]:
23.79000

[ LogP ]:
0.01428

[ Stability ]:
Stable. Incompatible with acids, bases, magnesium. Reacts violently with oxidizing agents, nitrates. Reaction with acid releases highly toxic gas (HCN).

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GL7150000

CHEMICAL NAME :: Copper cyanide

CAS REGISTRY NUMBER :: 544-92-3

LAST UPDATED :: 199701

WISWESSER LINE NOTATION :: CU CN

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1265 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TOXID9 Toxicologist. (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway, Akron, OH 44311) V.1- 1981- Volume(issue)/page/year: 3,170,1983 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.1 mg(Cu)/m3 (fume) JAN 1993 OEL-AUSTRALIA:TWA 0.2 mg(Cu)/m3 (fume) JAN 1993 OEL-AUSTRALIA:TWA 1 mg(Cu)/m3 (dust) JAN 1993 OEL-BELGIUM:TWA 0.2 mg(Cu)/m3 (fume) JAN 1993 OEL-BELGIUM:TWA 1 mg(Cu)/m3 (dust) JAN 1993 OEL-DENMARK:TWA 0.1 mg(Cu)/m3 (fume) JAN 1993 OEL-DENMARK:TWA 1 mg(Cu)/m3 (dust) JAN 1993 OEL-FINLAND:TWA 0.2 mg(Cu)/m3 (fume) JAN 1993 OEL-FINLAND:TWA 1 mg(Cu)/m3 (dust) JAN 1993 OEL-FRANCE:TWA 0.2 mg(Cu)/m3 (fume) JAN 1993 OEL-FRANCE:TWA 1 mg(Cu)/m3;STEL 2 mg(Cu)/m3 (dust) JAN 1993 OEL-GERMANY:TWA 0.1 mg(Cu)/m3 (fume) JAN 1993 OEL-GERMANY:TWA 1 mg(Cu)/m3 (dust) JAN 1993 OEL-HUNGARY:TWA 0.2 mg(Cu)/m3;STEL 0.4 mg(Cu)/m3 (dust) JAN 1993 OEL-INDIA:TWA 0.2 mg(Cu)/m3 (fume) JAN 1993 OEL-THE NETHERLANDS:TWA 02 mg(Cu)/m3 (fume) JAN 1993 OEL-THE NETHERLANDS:TWA 1 mg(Cu)/m3 (dust) JAN 1993 OEL-THE PHILIPPINES:TWA 1.0 mg(Cu)/m3 (fume) JAN 1993 OEL-POLAND:TWA 0.1 mg(Cu)/m3 (fume) JAN 1993 OEL-RUSSIA:STEL 0.5 ppm (1 mg(Cu)/m3) (dust) JAN 1993 OEL-SWEDEN:TWA 0.2 mg(Cu)/m3 (resp. dust) JAN 1993 OEL-SWEDEN:TWA 0.2 mg(Cu)/m3 (fume) JAN 1993 OEL-SWEDEN:TWA 1 mg(Cu)/m3 (total dust) JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg(Cu)/m3;STEL 0.2 mg(Cu)/m3 (fume) JAN 1993 OEL-SWITZERLAND:TWA 1 mg(Cu)/m3;STEL 1 mg(Cu)/m3 JAN 1993 OEL-THAILAND:TWA 0.1 mg(Cu)/m3 (fume) JAN 1993 OEL-THAILAND:TWA 1 mg(Cu)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.2 mg(Cu)/m3 (fume) JAN 1993 OEL-UNITED KINGDOM:TWA 1 mg(Cu)/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 20155 No. of Facilities: 1812 (estimated) No. of Industries: 43 No. of Occupations: 21 No. of Employees: 11022 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 20155 No. of Facilities: 1673 (estimated) No. of Industries: 43 No. of Occupations: 29 No. of Employees: 22333 (estimated) No. of Female Employees: 4407 (estimated)

Safety Information

[ Symbol ]:

GHS06, GHS09

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H300 + H310 + H330-H410

[ Supplemental HS ]:
Contact with acids liberates very toxic gas.

[ Precautionary Statements ]:
P260-P264-P273-P280-P284-P301 + P310

[ Hazard Codes ]:
T+:Verytoxic;N:Dangerous for the environment;

[ Risk Phrases ]:
R26/27/28;R32

[ Safety Phrases ]:
S7-S28-S29-S45-S60-S61

[ RIDADR ]:
UN 1587 6.1/PG 2

[ WGK Germany ]:
2

[ RTECS ]:
GL7150000

[ Packaging Group ]:
II

[ Hazard Class ]:
6.1

[ HS Code ]:
2837199011

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

POTASSIUM CYANIDE
Copper sulfate pentahydrate
Sodium cyanide
Copper(I) iodide
Mercury cyanide
copper bromide

DownStream

Furo[3,2-b]pyridine-3-carbonitrile(9CI)
3-bromotetrahydro-2H-pyran-2-carbonitrile
9-oxothioxanthene-2,7-dicarbonitrile
2-Chloro-5-fluoroisonicotinonitrile
Ethyl 5-cyano-1-benzothiophene-2-carboxylate
2-chloronaphthalene-1-carbonitrile
4-[2-(4-hydroxyphenyl)ethyl]benzonitrile
3,4-Dihydro-2H-pyran-6-carbonitrile
2-Chloro-5-methyl sulfanyl benzoic acid

Customs

[ HS Code ]: 2926909090

[ Summary ]:
HS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Articles

Iron(VI) and iron(V) oxidation of copper(I) cyanide.

Environ. Sci. Technol. 39(10) , 3849-54, (2005)

Copper(Il) cyanide (Cu(CN)4(3-)) in the gold mine industry presentsthe biggest concern in cyanide management because it is much more stable than free cyanide. Cu(CN)4(3-) is highlytoxic to aquatic lif...

The first precise molecular structure of a monomeric transition metal cyanide, copper(I) cyanide.

J. Am. Chem. Soc. 124(20) , 5895-901, (2002)

Copper(I) cyanide is an important reagent in organic, organometallic, and supramolecular chemistry because of both the copper center and the versatile cyanide ligand. Solid-phase CuCN and many of its ...

Crystal Structures of a Series of Complexes Produced by Reaction of Copper(I) Cyanide with Diamines.

Inorg. Chem. 38 , 984, (1999)

A new synthetic procedure developed recently in our laboratories has made possible the synthesis of variety of new complexes of CuCN with diamines. Synthesis was effected by adding the ligand to a sol...

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