ICSC 1639 - CALCIUM CYANAMIDE

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CALCIUM CYANAMIDE	ICSC: 1639 (October 2006)
Calcium carbimide Cyanamide, calcium salt

CAS #: 156-62-7

UN #: 1403

EC Number: 205-861-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible (impurities constitute a fire risk). Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion on contact with water or metals.	NO contact with water.	Use dry powder. NO carbon dioxide, foam, water.

STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
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	CLASSIFICATION & 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.	According to UN GHS Criteria WARNING Harmful if swallowed Causes serious eye irritation Transportation UN Classification UN Hazard Class: 4.3; UN Pack Group: III
STORAGE
Keep in a well-ventilated room. Dry. Well closed. Separated from food and feedstuffs.
PACKAGING

CALCIUM CYANAMIDE

ICSC: 1639

PHYSICAL & CHEMICAL INFORMATION
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).	Formula: CN₂.Ca Molecular mass: 80.1 Decomposes when heated Density: 2.3 g/cm³ Solubility in water: reaction

PHYSICAL & CHEMICAL INFORMATION

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).

Formula: CN₂.Ca
Molecular mass: 80.1
Decomposes when heated
Density: 2.3 g/cm³
Solubility in water: reaction

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body in hazardous amounts by inhalation and by ingestion. Effects of short-term exposure The substance is severely irritating to the eyes and respiratory tract.	Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

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

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

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

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.5 mg/m³, as TWA; A4 (not classifiable as a human carcinogen). MAK: (inhalable fraction): 1 mg/m³; peak limitation category: II(2); skin absorption (H); pregnancy risk group: C

ENVIRONMENT
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.

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

EC Classification
Symbol: Xn; R: 22-37-41; S: (2)-22-26-36/37/39

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