Home Categories Inorganic chemistry Coppercyanide
A0999250

Coppercyanide , 99% , 544-92-3

Synonym(s):
Copper(I) cyanide;Cupricin;Cuprous cyanide

CAS NO.:544-92-3

Empirical Formula: CCuN

Molecular Weight: 89.56

MDL number: MFCD00010975

EINECS: 208-883-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: 474 °C(lit.)
Boiling point: decomposes [STR93]
Density  2.92 g/mL at 25 °C(lit.)
vapor pressure  0Pa at 25℃
storage temp.  Poison room
solubility  insoluble in H2O, ethanol; soluble in KCN solution
form  Powder
Specific Gravity 2.92
color  White-beige to greenish
Water Solubility  Practically insoluble in water and alcohol. Soluble in ammonium hydroxide, aqueous ammonia, pyridine and N-methylpyrrolidone.
Sensitive  air sensitive
Merck  14,2661
BRN  3587244
Solubility Product Constant (Ksp) pKsp: 19.46
Exposure limits TLV-TWA 1 mg Cu/m3 (ACGIH).
Stability: Stable. Incompatible with acids, bases, magnesium. Reacts violently with oxidizing agents, nitrates. Reaction with acid releases highly toxic gas (HCN).
LogP -1.49 at 25℃
CAS DataBase Reference 544-92-3(CAS DataBase Reference)
EPA Substance Registry System Copper(I) cyanide (544-92-3)

Description and Uses

off-white to green powder. Insoluble in water,soluble in HCI, Nl40H, and potassium cyanide. Used in Sandmeyer's reaction to synthesize aryl cyanides. Toxic by skin absorption, through open wounds, by ingestion, and by inhalation of hydrogen cyanide that arises from slight decomposition. Produces toxic oxides of nitrogen in fires.

Cuprous cyanide is used in electroplating; as an insecticide and fungicide; and as a catalyst for polymerization.

Safety

Symbol(GHS) 
GHS06,GHS09
Signal word  Danger
Hazard statements  H300+H310+H330-H410
Precautionary statements  P260-P262-P273-P280-P302+P352+P310-P304+P340+P310
Hazard Codes  T+,N,T
Risk Statements  26/27/28-32-50/53
Safety Statements  7-28-29-45-60-61-28A
RIDADR  UN 1587 6.1/PG 2
WGK Germany  2
RTECS  GL7150000
10-23
TSCA  Yes
HS Code  2837 19 00
HazardClass  6.1
PackingGroup  II
Hazardous Substances Data 544-92-3(Hazardous Substances Data)

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