ChemicalBook >  Product Catalog >  Inorganic chemistry >  Inorganic salts >  Cyanide, hydroxide and hydrogen complexes >  ZINC CYANIDE

ZINC CYANIDE

Basic information Preparation Safety Related Supplier

ZINC CYANIDE Basic information

Product Name:
ZINC CYANIDE
CAS:
557-21-1
MF:
C2N2Zn
MW:
117.42
EINECS:
209-162-9
Mol File:
557-21-1.mol
More
Less

ZINC CYANIDE Chemical Properties

Melting point:
800 °C
Density 
1,85 g/cm3
form 
Powder
color 
White to off-white
Water Solubility 
Soluble in alkalies, potassium cyanide and ammonia. Insoluble in water and most solvents.
Sensitive 
Hygroscopic
Merck 
14,10135
BRN 
4124366
CAS DataBase Reference
557-21-1(CAS DataBase Reference)
EPA Substance Registry System
Zinc cyanide (557-21-1)
More
Less

Safety Information

Hazard Codes 
N-T+,N,T+
Risk Statements 
50/53-32-26/27/28
Safety Statements 
7-61-60-45-29-28A-28
RIDADR 
1713
WGK Germany 
3
RTECS 
ZH1575000
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
I
HS Code 
28371990

MSDS

  • Language:EnglishProvider:ACROS
  • Language:EnglishProvider:ALFA
More
Less

ZINC CYANIDE Usage And Synthesis

Preparation

Zinc cyanide is precipitated by mixing solutions of potassium cyanide and a soluble zinc salt, such as zinc chloride or sulfate:
Zn2+ (aq) + 2CN¯(aq) → Zn(CN)2(s)

Chemical Properties

Colorless crystalline solid or white powder. Slight, bitter almond odor. Sinks in water; insoluble.

General Description

A white powder. insoluble in water (about 5mg/L at 20°C); soluble in alkalies, potassium cyanide and ammonia solutions; insoluble in alcohol. Toxic by inhalation (dust and the hydrogen cyanide from slight decomposition) and by ingestion. Produces toxic oxides of nitrogen in fires. Used in medicine, in metal plating, and in chemical analysis.

Reactivity Profile

ZINC 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].

Health Hazard

EYES: Causes eye burns. SKIN: Irritation. INGESTION OR INHALATION: A bitter, acrid burning taste is sometimes noted followed by a feeling of constriction or numbness in the throat. Salivation and nausea are not unusual, but vomiting is rare. Anxiety, confusion, vertigo, giddiness and often a sensation of stiffness in the lower jaw. Hypernea and dyspnea. Rapid respiration, then slow and irregular. Unconsciousness, convulsions, death from respiratory arrest.
The compound is toxic by oral and intraperitoneal routes. The intraperitoneal lethal dose in rat is 100 mg/kg.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Containers may explode when heated. Runoff may pollute waterways.

Safety Profile

Poison by intraperitoneal route. Can react violently with Mg. When heated to decomposition it emits toxic fumes of CN-, ZnO, and NOx. Used in electroplating operations. See also CYANIDE and ZINC COMPOUNDS.

Potential Exposure

Used in pharmaceuticals and medicine. Also used in metal plating, and as a laboratory chemical.

Shipping

UN1713 Zinc cyanide, Hazard Class: 6.1; Labels: 6.1-Poisonous material.

Purification Methods

It is a POISONOUS white powder which becomes black on standing if Mg(OH)2 and carbonate are not removed in the preparation. Thus, wash it well with H2O, then well with EtOH, Et2O and dry it in air at 50o. Analyse it by titrating the cyanide with standard AgNO3. Other likely impurities are ZnCl2, MgCl2 and traces of basic zinc cyanide; the first two salts can be washed out. It is soluble in aqueous KCN solutions. However, if purified in this way Zn(CN)2 is not reactive in the Gattermann synthesis. For this, the salt should contain at least 0.33 mols of KCl or NaCl which will allow the reaction to proceed faster. [Adams & Levine J Am Chem Soc 45 2375 1923, Arnold & Sorung J Am Chem Soc 60 1699 1938, Fuson et al. Org Synth Coll Vol III 549 1955.]

Incompatibilities

Releases hydrogen cyanide on contact with moisture including humidity in air. Tends to explosive instability; possible explosion when heated rapidly. Incompatible with 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. Contact with acids and/or acid salts and alcohols will release highly toxic and flammable hydrogen cyanide gas. Incompatible with reducing agents, alcohols, glycols, combustible materials, ethers, hydrazines, organic substances, metal powders. Capable of violent oxidation under certain condition; fusion with metal chlorates, perchlorates, nitrates or nitrites can cause explosions.

Waste Disposal

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal. 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. Add strong alkaline hypochlorite and react for 24 hours. Then flush to sewer with large volumes of water.

ZINC CYANIDE Preparation Products And Raw materials

Preparation Products

Raw materials

More
Less

ZINC CYANIDESupplierMore

Jiangsu aikang biomedical research and development co., LTD Gold
Tel:
Email:
ycli@aikonchem.com
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Alfa Aesar
Tel:
400-610-6006; 021-67582000
Email:
saleschina@alfa-asia.com
Beijing dtftchem Technology Co., Ltd.
Tel:
010-60275820-
Email:
dtftchem@sina.com;
Energy Chemical
Tel:
021-58432009
Email:
sales8178@energy-chemical.com
Basic information Preparation Safety Related Supplier