HYDROGEN CYANIDE, LIQUEFIED
ICSC: 0492 |
Hydrocyanic acid Prussic acid Formonitrile HCN Molecular mass: 27.03 (liquefied) ICSC # 0492 | CAS # 74-90-8 RTECS # MW6825000 UN # 1051 EC # 006-006-00-X July 05, 2003 Validated |
TYPES OF HAZARD/ EXPOSURE | ACUTE HAZARDS/ SYMPTOMS | PREVENTION | FIRST AID/ |
FIRE | Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire. | NO open flames, NO sparks, and NO smoking. | 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, foam, carbon dioxide. |
EXPLOSION | Gas/air mixtures are explosive. | Closed system, ventilation, explosion-proof electrical equipment and lighting. | In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position. |
EXPOSURE | AVOID ALL CONTACT! | IN ALL CASES CONSULT A DOCTOR! | |
INHALATION | Confusion. Drowsiness. Headache. Nausea. Convulsions. Shortness of breath. Unconsciousness. Death. | Ventilation, local exhaust, or breathing protection. | Fresh air, rest. Half-upright position. No mouth-to-mouth artificial respiration. Administer oxygen by trained personnel. Refer for medical attention. See Notes. |
SKIN | MAY BE ABSORBED! (Further see Inhalation). | Protective gloves. Protective clothing. | Rinse skin with plenty of water or shower. Refer for medical attention. Wear protective gloves when administering first aid. |
EYES | VAPOUR WILL BE ABSORBED! Redness. (See Inhalation). | Safety goggles, or eye protection in combination with breathing protection. | First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor. |
INGESTION | Burning sensation. (Further see Inhalation). | Do not eat, drink, or smoke during work. Wash hands before eating. | Rinse mouth. Do NOT induce vomiting. No mouth-to-mouth artificial respiration. Administer oxygen by trained personnel. Refer for medical attention. See Notes. |
SPILLAGE DISPOSAL | STORAGE | PACKAGING & LABELLING | ||
Evacuate danger area immediately! Consult an expert! Ventilation. Remove all ignition sources. Absorb remaining liquid in sand or inert absorbent and remove to safe place. NEVER direct water jet on liquid. Do NOT let this chemical enter the environment. Gas-tight chemical protection suit including self-contained breathing apparatus. | Fireproof. Separated from food and feedstuffs . Cool. Store only if stabilized. | Marine pollutant. F+ symbol T+ symbol N symbol R: 12-26-50/53 S: 1/2-7/9-16-36/37-38-45-60-61 UN Hazard Class: 6.1 UN Subsidiary Risks: 3 UN Packing Group: I | ||
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HYDROGEN CYANIDE, LIQUEFIED | ICSC: 0492 |
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PHYSICAL |
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ENVIRONMENTAL | The substance is very toxic to aquatic organisms. | |||
N O T E S | ||||
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. 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% of hydrogen cyanide; 1614, Hydrogen cyanide stabilized, absorbed in a porous inert material; 3294, Hydrogen cyanide solution in alcohol, not more than 45% of 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.
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ADDITIONAL INFORMATION | |||||
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IMPORTANT LEGAL NOTICE: | Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values. |
- Page last reviewed: July 22, 2015
- Page last updated: July 1, 2014
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