Zinc cyanide

  • Zinc dicyanide
Formula
Zn(CN)2
Structure
Description
A white powder.
Uses
Metal plating, chemical reagent, in insecticide.

Registry Numbers and Inventories.
CAS
557-21-1
EC (EINECS/ELINCS)
209-162-9
R 26/27/28 32 50/53
S 7 28 29 45 60 61
RTECS
ZH1575000
RTECS class
Agricultural Chemical and Pesticide
UN (DOT)
1713
Merck
12,10264
Beilstein/Gmelin
4124366
Beilstein Reference
3-02-00-00061
RCRA
P121
Swiss Giftliste 1
G-8057
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C2N2Zn
Formula mass
117.43
Melting point, °C
800.0
Odor Threshold Odor threshold Odorless
Density
1.852 g/cm3 (25 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
Tightly closed containers. Keep away from heat, water, and acids.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Use water spray to knock-down vapors. Do not use water on material itself. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Water spill: Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3). Add calcium hypochlorite (Ca(ClO)2). Adjust pH to neutral (pH=7). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Stability
No data.
Incompatibilities
Reacts with incandescence with magnesium.
Decomposition
When heated to decomposition it emits toxic fumes of hydrogen cyanide, zinc oxide and nitrogen oxides. Toxic gases and vapors (such as hydrogen cyanide and carbon monoxide) may be released when cyanide decomposes.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use foam, dry chemical, or carbon dioxide. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors.
Fire potential
Nonflammable.
Hazards
Containers may explode when heated. Runoff may pollute waterways.
Combustion products
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Health
3
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure limit(s)
TLV (as CN): ppm; 5 mg/m3 (skin) (ACGIH 1991-1992).
Poison_Class
1
Exposure effects
Initially, headache, vertigo, and agitation occur, followed by combative behavior, coma, seizures, and death.
   Inhalation
Tachypnea, hyperpnea, and dyspnea followed rapidly by respiratory depression are common. Pulmonary edema may occur.
   Skin
Papules, rashes, pruritus, and ulcerations may occur.
   Eyes
Burning sensation of mouth and throat, and equally red retinal arteries and veins are common.

First aid
 
   Ingestion
CYANIDES ARE EXTREMELY TOXIC AND FAST-ACTING POISONS. Even though the induction of vomiting is not usually recommended outside of a physician's care if the victim is conscious and not convulsing, it may be worth the risk if a cyanide has been ingested. Ipecac syrup or salt water may be used to induce vomiting in such an emergency. IMMEDIATELY call a hospital or poison control center and transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, assure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
1713
Response guide
Hazard class
6.1
Packing Group
I
 
USCG CHRIS Code
ZCN
 
Std. Transport #
4923495