|HYDROGEN CYANIDE, LIQUEFIED||ICSC: 0492|
|CAS #: 74-90-8|
| UN #: 1051
|EC Number: 200-821-6
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire. Gas/air mixtures are explosive.||NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting.||Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with powder, water spray, alcohol-resistant foam, carbon dioxide. In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.|
|AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!|
|Inhalation||Confusion. Drowsiness. Headache. Nausea. Shortness of breath. Convulsions. Unconsciousness. Respiratory and cardiac arrest.||Use ventilation, local exhaust or breathing protection.||Administration of oxygen may be needed. Fresh air, rest. Half-upright position. No mouth-to-mouth artificial respiration. Refer immediately for medical attention. See Notes.|
|Skin||MAY BE ABSORBED! Further see Inhalation.||Protective gloves. Protective clothing.||Wear protective gloves when administering first aid. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention. See Notes.|
|Eyes||MAY BE ABSORBED! Redness. Pain. See Inhalation.||Wear face shield or eye protection in combination with breathing protection.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||Burning sensation. Further see Inhalation.||Do not eat, drink, or smoke during work. Wash hands before eating.||Rinse mouth. Administration of oxygen may be needed. NO mouth-to-mouth artificial respiration. Do NOT induce vomiting. Refer immediately for medical attention. See Notes.|
|SPILLAGE DISPOSAL||CLASSIFICATION & LABELLING|
|Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Ventilation. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. NEVER direct water jet on liquid.||
According to UN GHS Criteria
Extremely flammable liquid and vapour
Fatal if swallowed, in contact with skin or if inhaled
Causes eye irritation
Very toxic to aquatic life
Very toxic to aquatic life with long lasting effects
|Store only if stabilized. Fireproof. Cool. Separated from food and feedstuffs and incompatible materials. See Chemical Dangers. Store in an area without drain or sewer access.|
Do not transport with food and feedstuffs.
|HYDROGEN CYANIDE, LIQUEFIED||ICSC: 0492|
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|OCCUPATIONAL EXPOSURE LIMITS|
TLV: (ceiling value): 4.7 ppm as STEL; (skin).
EU-OEL: 1 mg/m3, 0.9 ppm as TWA; 5 mg/m3, 4.5 ppm as STEL; (skin)
|The substance is very toxic to aquatic organisms.|
|The occupational exposure limit value should not be exceeded during any part of the working exposure.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Isolate contaminated clothing by sealing in a bag or other container.
The odour warning when the exposure limit value is exceeded is insufficient.
The recommendations on this Card also apply to hydrogen cyanide, stabilized, absorbed in a porous inert material.
Other UN numbers: 1613, Hydrogen cyanide, aqueous solution, not more than 20% hydrogen cyanide; 1614, Hydrogen cyanide, stabilized, containing less than 3% water and absorbed in a porous inert material; 3294, Hydrogen cyanide, solution in alcohol with not more than 45% hydrogen cyanide.
Never work alone in an area if hydrogen cyanide exposure is possible.
Depending on the degree of exposure, periodic medical examination is suggested.
CLP00 : H300; H310; H330; H400; H410.
France : Valeurs limites réglementaires contraignantes : VLEP-8h = 2ppm ; VLCT = 10ppm. EC Classification
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