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| TYPES OF HAZARD / EXPOSURE | ACUTE HAZARDS / SYMPTOMS | PREVENTION | FIRST AID / FIRE FIGHTING |
| FIRE |
Dust may ignite on contact with air or oxygen.
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NO contact with oxidants.
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Special powder, dry sand, NO other agents.
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| EXPLOSION |
Finely dispersed particles form explosive mixtures in air. Risk of fire and explosion on contact with oxidants or acetylene.
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Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.
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| EXPOSURE |
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PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
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| Inhalation |
Cough. Shortness of breath. Sore throat. Wheezing.
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Local exhaust or breathing protection.
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Fresh air, rest. Refer for medical attention.
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| Skin |
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Protective gloves. Protective clothing.
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Remove contaminated clothes. Rinse and then wash skin with water and soap.
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| Eyes |
Redness.
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Safety goggles, or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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| Ingestion |
Abdominal pain. Vomiting.
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Do not eat, drink, or smoke during work.
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Rinse mouth. Give one or two glasses of water to drink.
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| SPILLAGE DISPOSAL | PACKAGING & LABELLING | |||||||
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Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment.
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| EMERGENCY RESPONSE | STORAGE | |||||||
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Separated from strong oxidants. Store in an area without drain or sewer access.
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| IMPORTANT DATA | |||
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PHYSICAL STATE; APPEARANCE: SILVER-GREY POWDER. PHYSICAL DANGERS: Dust explosion possible if in powder or granular form, mixed with air. CHEMICAL DANGERS: The substance may spontaneously ignite on contact with air or acetylene, when finely divided. Reacts with strong oxidants, causing fire and explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV: 0.02 mg/m³ as TWA; A3 (confirmed animal carcinogen with unknown relevance to humans); BEI issued; (ACGIH 2004). MAK: (Inhalable fraction) skin absorption (H); sensitization of respiratory tract and skin (Sah); Carcinogen category: 2; Germ cell mutagen group: 3A (DFG 2009) |
ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: A harmful concentration of airborne particles can be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: The substance (as fume or dust) is mildly irritating to the respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation exposure may cause asthma. Lungs may be affected by repeated or prolonged exposure. This substance is possibly carcinogenic to humans. | ||
| PHYSICAL PROPERTIES | |||
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Boiling point: 2870°C Melting point: 1493°C Density: 8.9 g/cm³ Solubility in water: none |
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| ENVIRONMENTAL DATA | |||
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The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish and in molluscs.
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| NOTES | |||
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Depending on the degree of exposure, periodic medical examination is suggested. The symptoms of asthma 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. Anyone who has shown symptoms of asthma due to this substance should avoid all further contact with this substance. Do NOT take working clothes home. Card has been partially updated in April 2010: see Occupational Exposure Limits, Ingestion First Aid, Spillage Disposal, Storage.
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| ADDITIONAL INFORMATION | |||
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| © IPCS, CEC 2005 | |||
See Also:
Toxicological Abbreviations
Cobalt (UKPID)