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CALCIUM CYANAMIDE
ICSC: 1639
Peer-Review Status: 12.10.2006 Validated
Calcium carbimide
Cyanamide, calcium salt 
CAS #: 156-62-7 RTECS #: GS6000000
UN #: 1403
EC #: 615-017-00-4
EINECS #: 205-861-8
    Formula: CN2.Ca
Molecular mass: 80.1

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Not combustible (impurities constitute a fire risk). Gives off irritating or toxic fumes (or gases) in a fire.  NO contact with water.  Use dry powder. NO carbon dioxide, foam, water. 
EXPLOSION Risk of fire and explosion on contact with water or metals.     
 
EXPOSURE   STRICT HYGIENE!   
Inhalation Cough. Burning sensation. Sore throat. See Notes.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection if powder.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention. 
Ingestion Sore throat. Burning sensation in the throat and chest. Abdominal pain. See Notes.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Cover the spilled material with dry non-combustible inert absorbent. Sweep spilled substance into covered plastic containers. Do NOT wash away into sewer.   
EC Classification
Symbol: Xn; R: 22-37-41; S: (2)-22-26-36/37/39 
UN Classification
UN Hazard Class: 4.3; UN Pack Group: III 
GHS Classification
Signal: Warning
Harmful if swallowed
Causes serious eye irritation 
excl mark;warn

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-43GW2-II+III.
NFPA Code: H-; F3; R1; W. 
Keep in a well-ventilated room. Dry. Well closed. Separated from food and feedstuffs. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS CRYSTALS. 

Physical dangers
 

Chemical dangers
Decomposes under the influence of water. This produces cyanamide (see ICSC 0424), ammonia, calcium hydroxide and acetylene. This generates fire and explosion hazard. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001). 

Occupational exposure limits
MAK (inhalable fraction): 1 mg/m³; Peak limitation category: II(2); Pregnancy risk group: C; Skin absorption (H); (DFG 2007). 

Routes of exposure
The substance can be absorbed into the body in hazardous amounts by inhalation and by ingestion. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of short-term exposure
The substance is severely irritating to the eyes and respiratory tract. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes when heated
Density: 2.3 g/cm³
Solubility in water: reaction 
This substance may be hazardous to the environment. Special attention should be given to aquatic organisms. 

NOTES
In combination with even small amounts of alcohol the substance causes effects on cardiovascular and central nervous systems resulting in flushing, palpitation, hypotension and hyperventilation.
The effects may be delayed.
Commercial calcium cyanamide is a crystalline substance which contains trace amounts of calcium carbide which may produce acetylene in production vessels or containers.
Reacts violently with fire extinguishing agents such as water.
UN 1403: Calcium Cyanamide with more than 0.1% calcium carbide. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations