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Sigma-Aldrich

Copper(I) cyanide

99%

Synonym(s):

Cuprous cyanide

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About This Item

Linear Formula:
CuCN
CAS Number:
544-92-3
Molecular Weight:
89.56
Beilstein:
3587244
EC Number:
208-883-6
MDL number:
MFCD00010975
UNSPSC Code:
12352302
PubChem Substance ID:
329752187
NACRES:
NA.21

Quality Level

200

Assay

99%

form

powder

mp

474 °C (lit.)

density

2.92 g/mL at 25 °C (lit.)

SMILES string

[Cu]C#N

InChI

1S/CN.Cu/c1-2;

InChI key

DULSAGLWMRMKCQ-UHFFFAOYSA-N

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Application

Applied in a widely useful, thiosulfate-assisted, synthesis of a variety of diamine-CuCN complexes.

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2 Oral

Target Organs

Liver,spleen,Bone marrow

Supplementary Hazards

EUH032

Storage Class Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Virender K Sharma et al.
Environmental science & technology, 39(10), 3849-3854 (2005-06-15)
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 life; therefore, environmentally friendly techniques are required for the removal of Cu(CN)4(3-)
Douglas B Grotjahn et al.
Journal of the American Chemical Society, 124(20), 5895-5901 (2002-05-16)
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 derivatives show oligomeric or polymeric structures, a trait shared by other
Fred B. Stocker et al.
Inorganic chemistry, 35(11), 3145-3153 (1996-05-22)
The syntheses and crystal structures of the first cyanide, sulfur mixed ligand copper(I) complexes are reported. The first complex of the family was discovered when (CuCN)(3)(C(6)H(12)N(4))(2) (1) (C(6)H(12)N(4) = hexamethylenetetramine) was treated with aqueous thiourea. The sulfur ligands include thiourea
Fred B. Stocker et al.
Inorganic chemistry, 38(5), 984-991 (2001-10-24)
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 solution of CuCN in aqueous sodium thiosulfate. This

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