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216305

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
Assay:
99%
form:
powder

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Poisonous substance

PRTR

Class I Designated Chemical Substances

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

216305-500G:4548173117102
216305-5G:4548173117119
216305-BULK:
216305-100G:4548173117096
216305-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ3064
MKCN2914
MKCM1916
MKCL6715
MKCH1574

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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
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-)
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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