ICSC 0406 - CALCIUM CARBIDE

CALCIUM CARBIDE	ICSC: 0406 (April 2017)
Calcium acetylide Acetylenogen

CAS #: 75-20-7

UN #: 1402

EC Number: 200-848-3

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible but forms flammable gas on contact with water or damp air. Many reactions may cause fire or explosion. Risk of fire and explosion on contact with water.	NO contact with water. Use non-sparking handtools. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.	Use special powder, dry sand. NO other agents. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.

PREVENT DISPERSION OF DUST! STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Laboured breathing. Shortness of breath. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Refer immediately for medical attention.
Skin	Redness. Skin burns. Pain.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention.
Eyes	Redness. Pain. Blurred vision. Severe deep burns.	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	Laboured breathing. Shock or collapse. Further see Inhalation.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Remove all ignition sources. Sweep spilled substance into covered clean, dry containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT use water.	According to UN GHS Criteria DANGER In contact with water releases flammable gases which may ignite spontaneously Causes severe skin burns and eye damage May cause respiratory irritation Transportation UN Classification UN Hazard Class: 4.3; UN Pack Group: II
STORAGE
Separated from incompatible materials. See Chemical Dangers. Dry. Well closed.
PACKAGING
Airtight.

CALCIUM CARBIDE

ICSC: 0406

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance GREY CRYSTALS OR BLACK LUMPS WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Mixtures with silver nitrate and copper salts are shock-sensitive. Decomposes violently on contact with moisture or water. This produces highly flammable and explosive acetylene gas (ICSC 0089). This generates fire and explosion hazard. Reacts with chlorine, bromine, iodine, hydrogen chloride, lead, fluoride magnesium, sodium peroxide and sulfur. This generates fire and explosion hazard. Mixtures with iron (III) chloride, iron (III) oxide and tin (II) chloride ignite easily and burn fiercely.	Formula: CaC₂ Molecular mass: 64.1 Melting point: ~2300°C Relative density (water = 1): 2.22 Solubility in water: reaction

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
GREY CRYSTALS OR BLACK LUMPS WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
Mixtures with silver nitrate and copper salts are shock-sensitive. Decomposes violently on contact with moisture or water. This produces highly flammable and explosive acetylene gas (ICSC 0089). This generates fire and explosion hazard. Reacts with chlorine, bromine, iodine, hydrogen chloride, lead, fluoride magnesium, sodium peroxide and sulfur. This generates fire and explosion hazard. Mixtures with iron (III) chloride, iron (III) oxide and tin (II) chloride ignite easily and burn fiercely.

Formula: CaC₂
Molecular mass: 64.1
Melting point: ~2300°C
Relative density (water = 1): 2.22
Solubility in water: reaction

EXPOSURE & HEALTH EFFECTS
Routes of exposure Serious local effects by all routes of exposure. Effects of short-term exposure The substance is corrosive to the eyes, skin and respiratory tract. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. See Notes.	Inhalation risk A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
Serious local effects by all routes of exposure.

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. See Notes.

Inhalation risk
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
It is strongly advised not to let the chemical enter into the environment.

NOTES
Reacts violently with fire extinguishing agents such as water, producing explosive gas. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. See ICSC 0089.

ADDITIONAL INFORMATION

EC Classification
Symbol: F; R: 15; S: (2)-8-43

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    See Also:
       Toxicological Abbreviations