Copper(I) Cyanide

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Copper(I) Cyanide

Chemical Properties Uses Preparation

Product Name: Copper(I) Cyanide
CAS No.: 544-92-3
Chemical Name: Copper(I) Cyanide
Synonyms: COPPER CYANIDE;CUPROUS CYANIDE;Cu(CN);CopperCyanideTech.;Copper cyanide (Cu(CN));CUPRICIN;ai3-28745;CUCURBITACINA;Cyanocopper(I);Coprous cyanide
CBNumber: CB0193966
Molecular Formula: CCuN
Formula Weight: 89.56
MOL File: 544-92-3.mol

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Copper(I) Cyanide Property

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
Solubility Product Constant (Ksp): pKsp: 19.46
BRN: 3587244
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)

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Safety

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
F: 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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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P262Do not get in eyes, on skin, or on clothing.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 8.41811
Product name: Copper(I) cyanide
Purity: for synthesis
Packaging: 100G
Price: $42.8
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.41811
Product name: Copper(I) cyanide
Purity: for synthesis
Packaging: 500G
Price: $136
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.41811
Product name: Copper(I) cyanide
Purity: for synthesis
Packaging: 1kg
Price: $179
Updated: 2024/03/01

Sigma-Aldrich

Product number: 216305
Product name: Copper(I) cyanide
Purity: 99%
Packaging: 5g
Price: $59.9
Updated: 2024/03/01

Sigma-Aldrich

Product number: 216305
Product name: Copper(I) cyanide
Purity: 99%
Packaging: 100g
Price: $64.6
Updated: 2024/03/01

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Copper(I) Cyanide Chemical Properties,Usage,Production

Chemical Properties

Copper(I) cyanide, CuCN, [544-92-3], MW 89.56, MP 474°C, d 2.92, is white when pure, but usually available as an off-white or cream-colored powder and is insoluble in water and dilute acids but dissolves in complexing media such as ammonia and alkali cyanide solutions. It is produced by the reaction of sodium cyanide with copper(I) chloride solutions or by the reaction of copper(II) sulfate solutions with alkali cyanide and sodium hydrogen sulfite. It is used extensively in the electroplating industry and as a polymerization catalyst in organic reactions.

Uses

Copper(I) cyanide is used in copper plating of nickel, chromium, zinc alloys, steel, and other metals or alloys. Such copper plating imparts brightness, smoothness, hardness, and strength. The cyanide solution employed for copper electroplating consists of copper cyanide and sodium cyanide. Other applications of this compound are as an insecticide, a catalyst in polmerization, and as an antifouling agent in marine paints.

Preparation

Copper(I) cyanide is a precipitate obtained by adding potassium cyanide solution to an aqueous solution of Cu2+ salt:
COPPER(I) CYANIDE 2652CuCl2 + 4KCN → 2CuCN + C2N2 + 4KCl
The Cu2+ to CN¯ molar ratio should be 1:2. The precipitate dissolves in an excess of cyanide, forming soluble ions Cu(CN)2¯ , Cu(CN)32¯, and Cu(CN)43¯.

Description

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.

Chemical Properties

Cuprous cyanide is a white crystalline substance.

Physical properties

Cream-colored powder or green orthorhombic or red monoclinic crystals; density 2.90 g/cm³; melts at 474°C; decomposes at higher temperatures; practically insoluble in water, ethanol, and cold dilute acids; dissolves in ammonium hydroxide and potassium cyanide solutions.

Uses

Copper(I) cyanide is commonly used as a polymerization catalyst. The compound is useful in organic synthesis, as a catalyst, reagent in the preparation of nitriles(sandmeyer reaction). It is also used in electroplating copper and iron, silver plating, brass plating, and copper-tin alloy plating. It is used to make phthalocyanine dyes and pigments.

Uses

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

Uses

In electroplating Cu or Fe; as insecticide, fungicide; as antifouling agent in marine paints; as polymerization catalyst.

Reactivity Profile

Copper(I) Cyanide is decomposed by acids to give off hydrogen cyanide, a flammable poisonous gas. Tends to explosive instability. Capable of violent oxidation under certain condition: fusion with metal chlorates, perchlorates, nitrates or nitrites can cause explosions [Bretherick, 1979 p. 101]. Reacts with incandescence with magnesium [Mellor, 1940, Vol. 4, 271].

Hazard

Poison.

Health Hazard

Cuprous cyanide is a highly toxic substance. The toxic routes are inhalation of dust, ingestion, and skin contact. Toxicology and LD50 values for this compound are not reported. Because it is slightly soluble in water, its dissociation to cuprous and cyanide ions in the body may not be significant. The role of cyanide ion in the toxicity of cuprous cyanide is not established. The inhalation hazard, however, is attributable to copper. It is a skin irritant.

Fire Hazard

Special Hazards of Combustion Products: Toxic hydrogen cyanide gas may form in fires.

Flammability and Explosibility

Not classified

Safety Profile

A poison. Reacts violently with magnesium. When heated to decomposition it emits very toxic CNand NOx. See also CYANIDE and COPPER COMPOUNDS.

Potential Exposure

Copper cyanide is used in electroplating copper on iron; and as an insecticide and a catalyst.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least30 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit. Speedin removing material from skin is of extreme importance.Remove and isolate contaminated clothing and shoes at thesite. Keep victim quiet and maintain normal body temperature. Effects may be delayed. Keep victim underobservation.

storage

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area away from strong oxidizers.

Shipping

UN1587 Copper cyanide, Hazard Class: 6.1; Labels: 6.1-Poisonous materials

Purification Methods

Wash the cyanide thoroughly with boiling H2O, then with EtOH. Dry it at 100o to a fine soft powder. It dissolves in excess alkali cyanide solutions to form the very soluble complex ion Cu(CN)43-. [Bassett & Corbett J Chem Soc 125 1660 1924, Barber J Chem Soc 79 1943.]

Incompatibilities

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.

Waste Disposal

Copper-containing soluble wastes can be concentrated through the use of ion exchange, reverse osmosis, or evaporators to the point where copper can be electrolytically removed and sent to a reclaiming firm. If recovery is not feasible, the copper can be precipitated through the use of caustics and the sludge deposited in a chemical waste landfill. Copper-containing wastes can be concentrated to the point where copper can be electrolytically removed and reclaimed. If recovery is not feasible, the copper can be precipitated by alkali; the cyanide destroyed by alkaline oxidation yielding a sludge which can be sent to a chemical waste landfill. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

Copper(I) Cyanide Preparation Products And Raw materials

Raw materials

Copper Sodium sulfite Cuprous Sulfate Sulfurous Acid Copper(II) sulfate pentahydrate Sodium cyanide HYDROGEN CYANIDE Copper(I) chloride Sodium chlorate Copper(II) sulfate Sodium carbonate

Preparation Products

1H-INDAZOLE-5-CARBONITRILE 2-Amino-4-methylbenzonitrile Pyrazinecarbonitrile Benzoyl cyanide 6-(AMINOMETHYL)-3-AMINOPYRIDINE 5-Bromo-2-pyridinecarboxylic Acid PYRUVONITRILE 8-CHLORO-2-(TRIFLUOROMETHYL)QUINOLINE-4-CARBONITRILE 3-Cyanoquinoline 2-Cyano-5-methylpyridine Disperse Blue 165 Lamotrigine BENZO[B]THIOPHENE-3-CARBONITRILE 6-CYANOPURINE 9-CYANOPHENANTHRENE 2,5-DIMETHYLBENZONITRILE 4-Bromo-2-fluorobenzonitrile C-(1H-INDOL-5-YL)-METHYLAMINE 5-Cyanoindole Disperse Blue 366 METHYL 5-BROMOPYRAZINE-2-CARBOXYLATE 1-Benzothiophene-3-carboxylic acid 3-Amino-2-pyridinecarbonitrile 6-Methylpyridine-2-carbonitrile 6-METHOXYBENZOTHIAZOLE-2-CARBOXYLIC ACID 6-AMINO-5-METHYLNICOTINONITRILE 3-Butenenitrile 2-ACETYL-5-CYANOTHIOPHENE 3,5-DIFLUORO-BENZAMIDINE HYDROCHLORIDE 5-(AMINOMETHYL)PYRIDIN-2-AMINE 4'-Hydroxy-4-biphenylcarbonitrile Thiophene-3,4-dicarboxylic acid 6-Fluoro-4-(trifluoromethyl)quinoline-2-carboxylic acid ,97% 2-Amino-5-cyanopyridine 2-CARBOMETHOXY-6-METHOXYBENZOTHIAZOLE 7-CYANO-BENZO[B]THIOPHENE 3-Cyano-4-hydroxybenzoic acid 2-BROMO-4-METHYLBENZONITRILE 1-BENZOTHIOPHENE-3-CARBONYL CHLORIDE 2-AMINO-1-PHENYLETHANOL

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View Lastest Price from Copper(I) Cyanide manufacturers

Zhuozhou Wenxi import and Export Co., Ltd

Product: COPPER(I) CYANIDE 544-92-3
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-08-11

Career Henan Chemical Co

Product: COPPER(I) CYANIDE 544-92-3
Price: US $1.00/KG
Min. Order: 1IU
Purity: 99%
Supply Ability: 100kg
Release date: 2019-12-24

544-92-3, Copper(I) CyanideRelated Search:

INDIUM HYDROXIDE Copper(II) sulfate pentahydrate Chlorine dioxide Sebacic acid Boric acid Sodium cyanide Cupric cyanide Iron hydroxide Cesium hydroxide Zinc hydroxide STRONTIUM HYDROXIDE OCTAHYDRATE Cesium hydroxide Cupric hydroxide Sodium hydroxide Aluminum hydroxide Magnesium hydroxide Copper potassium cyanide Copper

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Copper (I) cyanideQ: What is Copper (I) cyanide Q: What is the CAS Number of Copper (I) cyanide Q: What is the storage condition of Copper (I) cyanide Q: What are the applications of Copper (I) cyanide

544-92-3 COPPER(I) CYANIDE

CUPROUS CYANIDE Extra Pure

544-92-3

Classes of Metal Compounds

Transition Metal Compounds

Cu (Copper) Compounds

Building Blocks

C1 to C5

Chemical Synthesis

Cyanides/Nitriles

Nitrogen Compounds

Organic Building Blocks

metal cyanide

Classes of Metal Compounds

Cu (Copper) Compounds

Transition Metal Compounds

Inorganics