HYDROGEN SELENIDE | ICSC: 0284 (April 2017) |
Selenium hydride |
CAS #: 7783-07-5 |
UN #: 2202 |
EC Number: 231-978-9 |
ACUTE HAZARDS | PREVENTION | FIRE FIGHTING | |
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FIRE & EXPLOSION | Extremely flammable. 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, carbon dioxide. In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position. |
STRICT HYGIENE! | |||
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SYMPTOMS | PREVENTION | FIRST AID | |
Inhalation | Burning sensation. Cough. Sore throat. Metallic taste. Laboured breathing. Nausea. Weakness. Garlic odour. | Use closed system or ventilation. | Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. |
Skin | ON CONTACT WITH LIQUID: FROSTBITE. | Cold-insulating gloves. | ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. |
Eyes | Redness. Pain. | Wear safety goggles or face shield. | First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. |
Ingestion |
SPILLAGE DISPOSAL | CLASSIFICATION & LABELLING |
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Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. NEVER direct water jet on liquid. |
According to UN GHS Criteria DANGER
Extremely flammable gasContains gas under pressure; may explode if heated Fatal if inhaled Causes eye irritation May cause respiratory irritation Transportation |
STORAGE | |
Fireproof. Separated from strong oxidants. Keep in the dark. Cool. | |
PACKAGING | |
HYDROGEN SELENIDE | ICSC: 0284 |
PHYSICAL & CHEMICAL INFORMATION | |
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Physical State; Appearance
Physical dangers
Chemical dangers
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Formula: H2Se |
EXPOSURE & HEALTH EFFECTS | |
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Routes of exposure
Effects of short-term exposure
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Inhalation risk
Effects of long-term or repeated exposure
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OCCUPATIONAL EXPOSURE LIMITS |
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TLV: 0.05 ppm as TWA. MAK: 0.02 mg/m3, 0.006 ppm; peak limitation category: II(8); carcinogen category: 3; pregnancy risk group: C. EU-OEL: 0.07 mg/m3, 0.02 ppm as TWA; 0.17 mg/m3, 0.05 ppm as STEL |
ENVIRONMENT |
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NOTES |
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The odour warning when the exposure limit value is exceeded is insufficient. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. |
ADDITIONAL INFORMATION | ||
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EC Classification Symbol: T, N; R: 23/25-33-50/53; S: (1/2)-20/21-28-45-60-61; Note: A |
All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material. | |
See Also: Toxicological Abbreviations