The chemical name for Zn dust is Zinc.
Understanding Zinc Dust
Zinc dust refers to elemental zinc in a finely powdered or granular form. While the term "dust" describes its physical state, its chemical composition is primarily pure zinc metal. This form increases its surface area, which can influence its reactivity and applications.
Chemical Composition and Identification
As an elemental substance, zinc dust consists of zinc atoms (Zn). It is chemically distinct from zinc compounds, which involve zinc bonded to other elements.
Key identifiers for zinc dust include:
- Chemical Name: Zinc
- Chemical Symbol: Zn
- CAS Number: 7440-66-6
The CAS (Chemical Abstracts Service) Registry Number 7440-66-6 specifically identifies elemental zinc, regardless of its physical form (e.g., solid ingot, fume, or dust).
Regulatory Information
Zinc (fume or dust) is recognized under various regulatory frameworks due to its potential environmental and health implications, especially in industrial settings.
| Regulatory Name | CAS Number | EPCRA 313 TRI Status |
|---|---|---|
| Zinc (fume or dust) | 7440-66-6 | 313 |
| Zinc Compounds | N982 | 313 |
- EPCRA 313 TRI: The Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313 Toxics Release Inventory (TRI) lists "Zinc (fume or dust)" and "Zinc Compounds" as reportable substances, highlighting their significance in environmental monitoring.
Properties and Uses of Zinc Dust
Zinc dust possesses several unique properties that make it valuable in various industrial and chemical applications:
- Reducing Agent: It is a strong reducing agent, commonly used in organic synthesis and metallurgy to reduce oxides and other compounds.
- Corrosion Protection: Zinc dust paints are utilized as anti-corrosive coatings for steel, providing galvanic protection.
- Precipitating Agent: It can precipitate more noble metals from solutions, such as in the purification of gold or silver.
- Chemical Manufacturing: Used in the production of various zinc compounds, dyes, and other chemicals.
Understanding that "Zn dust" is chemically "Zinc" is crucial for proper handling, safety, and regulatory compliance.
