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[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols] |  |
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TYPES OF
HAZARD / EXPOSURE |
ACUTE HAZARDS / SYMPTOMS | PREVENTION | FIRST AID / FIRE FIGHTING |
| FIRE |
Flammable.
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NO open flames, NO sparks, and NO smoking.
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Special powder.
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| EXPLOSION |
Finely dispersed particles form explosive mixtures in air. Risk of fire and explosion (see Chemical Dangers).
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Do NOT expose to friction or shock. 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!
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| Inhalation |
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Avoid inhalation of fine dust and mist. Local exhaust or breathing protection.
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| Skin |
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Protective gloves.
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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 spectacles.
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| Ingestion |
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Do not eat, drink, or smoke during work. Wash hands before eating.
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| SPILLAGE DISPOSAL | PACKAGING & LABELLING |
Evacuate danger area! Consult an expert! Eliminate all sources of ignition. Do NOT wash away into sewer. Do NOT absorb in saw-dust or other combustible absorbents. Wet powder to prevent dusting and ignition, then carefully collect powder into sealable containers. Remove to a safe place (extra personal protection: P2 filter respirator for harmful particles).
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UN Hazard Class: 4.2 (dry); 4.1 (wetted)
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| EMERGENCY RESPONSE | STORAGE |
Transport Emergency Card: TEC (R)-41G13
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Fireproof. Separated from strong oxidants, strong bases, halogens, phosphorous and sulfur. Keep under water.
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| IMPORTANT DATA | |
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PHYSICAL STATE; APPEARANCE:
GRAY POWDER. PHYSICAL DANGERS: Dust explosion possible if in powder or granular form, mixed with air. CHEMICAL DANGERS: May explosively decompose on shock, friction, or concussion. May explode on heating. The substance may spontaneously ignite on contact with air and at higher temperatures with nitrogen, phosphorous and sulphur. Reacts violently with strong acids, strong oxidants, halogens causing explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV: ppm; 0.5 mg/m 3 (as TWA) (ACGIH 1995-1996). |
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Lungs may be affected by repeated or prolonged exposure. The substance may have effects on the liver. |
| PHYSICAL PROPERTIES | |
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Boiling point: 4602°C
Melting point: 2227°C Relative density (water = 1): 13.31 Solubility in water: none |
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| ENVIRONMENTAL DATA | |
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| NOTES | |
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Powder is normally handled wetted with no less than 25% of water to reduce the fire and explosion risk. Health effects of exposure to the substance have not been investigated adequately. Rinse contaminated clothes (fire hazard) with plenty of water.
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