ZINC POWDER (pyrophoric) | ICSC: 1205 (November 2019) |
Blue powder Merrillite |
CAS #: 7440-66-6 |
UN #: 1436 (zinc powder or dust) |
EC Number: 231-175-3 |
ACUTE HAZARDS | PREVENTION | FIRE FIGHTING | |
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FIRE & EXPLOSION | Highly flammable. May ignite spontaneously on contact with air. Many reactions may cause fire or explosion. Finely dispersed particles form explosive mixtures in air. Risk of fire and explosion on contact with water or incompatible substances. See Chemical Dangers. | NO open flames, NO sparks and NO smoking. NO contact with oxidizing agents, acids, bases, water or incompatible substances. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Prevent deposition of dust. | Use special powder, dry sand. NO water. NO foam, carbon dioxide. NO other agents. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact of the substance with water. |
PREVENT DISPERSION OF DUST! | |||
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SYMPTOMS | PREVENTION | FIRST AID | |
Inhalation | Metallic taste. Sore throat. Cough. Weakness. Fever. See Effects of short-term exposure. | Use local exhaust. | Fresh air, rest. Seek medical attention if you feel unwell. See Notes. |
Skin | No acute symptoms expected. | Protective gloves. | First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. |
Eyes | Redness. | Wear safety spectacles. | Rinse with plenty of water (remove contact lenses if easily possible). |
Ingestion | Abdominal pain. Nausea. Vomiting. | Do not eat, drink, or smoke during work. Wash hands before eating. | Rinse mouth. Refer for medical attention . |
SPILLAGE DISPOSAL | CLASSIFICATION & LABELLING |
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Remove all ignition sources. Consult an expert! Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Do NOT wash away into sewer. Sweep spilled substance into covered dry containers. Then store and dispose of according to local regulations. |
According to UN GHS Criteria DANGER
Catches fire spontaneously if exposed to airIn contact with water releases flammable gases which may ignite spontaneously Very toxic to aquatic life with long lasting effects Transportation |
STORAGE | |
Fireproof. Well closed. Separated from incompatible materials and : see Chemical Dangers. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. | |
PACKAGING | |
Airtight. Marine pollutant. |
ZINC POWDER (pyrophoric) | ICSC: 1205 |
PHYSICAL & CHEMICAL INFORMATION | |
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Physical State; Appearance
Physical dangers
Chemical dangers
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Formula: Zn |
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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MAK: (as Zn, respirable fraction): 0.1 mg/m3; peak limitation category: I(4); (as Zn, inhalable fraction): 2 mg/m3; peak limitation category: I(2); pregnancy risk group: C; (DFG 2019) |
ENVIRONMENT |
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The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. |
NOTES |
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Zinc oxide fumes formed during combustion may cause metal fume fever (see ICSC 0208). The symptoms of metal fume fever do not become manifest until hours. Zinc may contain trace amounts of arsenic, when forming hydrogen, may also form toxic gas arsine (see ICSC0001 and ICSC0222). Zinc powder stabilized: Combustible solid, UN number: 3077, Hazard class: 9, Packing group: III; GHS: Warning, H400, H410. |
ADDITIONAL INFORMATION | ||
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EC Classification H250; H260; H400 / H400; H410 |
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See Also: Toxicological Abbreviations