Metallic Zinc Powder Fine Zinc Ash ULTRAFINE 3-4um - 10g

Metallic Zinc Powder

Other Names: Zinc Dust, Zinc Ash, Ultrafine Zinc
Chemical Formula: Zn
Molar Mass: 65.38 g/mol
CAS Number: 7440-66-6
Appearance: Fine gray metallic powder
Particle Size: 3–4 µm (ultrafine grade)
Odor: Odorless

Physical and Chemical Properties

• Density: ~7.14 g/cm³

• Melting Point: 419.5 °C

• Boiling Point: 907 °C

• Solubility: Insoluble in water; reacts with acids to produce hydrogen gas

• Reactivity: Reacts with strong acids and oxidizing agents

• Conductivity: Electrically and thermally conductive

• Flammability: Flammable in powder form; poses risk of dust explosion when dispersed in air

Applications

• Metallurgy: Used in the production of zinc-based alloys and galvanizing steel

• Organic Synthesis: Employed as a reducing agent in various laboratory and industrial reactions

• Coatings and Paints: Applied as an anti-corrosion pigment in protective coatings

• Battery Production: Component in alkaline and zinc–air batteries

• Catalysis: Utilized in catalytic systems and as a reagent in fine chemical production

Safety Information

Signal Word: ⚠️ Warning

Hazard Statements:

• H228: Flammable solid

• H410: Very toxic to aquatic life with long lasting effects

• H302: Harmful if swallowed

• H332: Harmful if inhaled

Precautionary Statements:

• P210: Keep away from heat, sparks, and open flames. No smoking

• P261: Avoid breathing dust

• P273: Avoid release to the environment

• P280: Wear protective gloves/eye protection/face protection

• P370+P378: In case of fire: Use dry sand, graphite, or powder extinguisher. Do not use water

• P501: Dispose of contents/container in accordance with local regulations

Handling and Storage

• Handling: Avoid dust formation. Handle under inert atmosphere if possible for large-scale use

• Storage: Store in a cool, dry, and well-ventilated area in tightly closed containers. Keep away from acids and oxidizers

Environmental Considerations

Zinc dust is toxic to aquatic organisms. Prevent environmental contamination by avoiding release into waterways or soil.