Direct Method Zinc Oxide Product Introduction
Product Description
Direct Method Zinc Oxide is a high-purity, fine powder produced
using the direct (French) method. It is widely used in various
industries due to its superior chemical stability, excellent
dispersion, and multifunctional properties. This versatile compound
is a critical material in rubber, ceramics, coatings, and
cosmetics, offering outstanding performance and consistency.
Specifications & Parameters
| Chemical Formula | ZnO |
| Appearance | White or slightly yellow fine powder |
| Purity (ZnO content) | ≥99% |
| Loss on Ignition (LOI) | ≤0.5% |
| Lead (Pb) | ≤0.002% |
| Cadmium (Cd) | ≤0.0005% |
| Iron (Fe) | ≤0.001% |
| Surface Area (m²/g) | 4-7 |
| pH of Aqueous Solution | 6-8 |
| Particle Size (D50) | ≤1.0 μm |
| Bulk Density | 0.35-0.60 g/cm³ |
Characteristics
1. High purity and stable chemical properties.
2. Excellent dispersibility in various media.
3. Fine particle size for uniform mixing.
4. Low heavy metal content, environmentally friendly.
5. High brightness and opacity.
Advantages
1. Superior Quality: Produced with advanced direct-method technology, ensuring
consistent quality and purity.
2. Versatility: Suitable for multiple industries such as rubber, ceramics, and
cosmetics.
3. Environmentally Safe: Low heavy metal content and safe for a wide range of
applications.
4. Excellent Performance: Provides enhanced reinforcement, thermal stability, and UV
protection.
Applications
1. Rubber Industry: Used as a reinforcing agent, activator, and vulcanization
accelerator.
2. Ceramics: Improves whiteness, strength, and thermal stability.
3. Paints & Coatings: Acts as a pigment and anti-corrosion agent.
4. Cosmetics: Used in sunscreens and skincare products as a UV absorber.
5. Pharmaceuticals: Functions as an antiseptic and astringent in ointments.
6. Agriculture: Serves as a micronutrient in fertilizers and animal feed
additives.
Production Technology
The direct method, also known as the French process, involves the
following steps:
1. Raw Material Selection: High-purity zinc materials such as zinc ore or zinc scrap are
used.
2. Smelting: Zinc is heated and vaporized.
3. Oxidation: Zinc vapor reacts with oxygen in a controlled environment to
produce fine zinc oxide powder.
4. Collection and Processing: The resulting ZnO is collected, filtered, and classified to
ensure quality and uniformity.
Theory
The production of Zinc Oxide via the direct method is based on the
principle of oxidation of metallic zinc in the presence of oxygen.
The chemical reaction is:
2Zn + O₂ → 2ZnO
This process ensures the formation of high-purity zinc oxide with
uniform particle size.
Service
1. Technical Support: Provide guidance on product application and usage.
2. Customization: Tailor specifications based on customer requirements.
3. Sample Availability: Free samples for testing and evaluation.
4. Logistics: Efficient shipping and delivery services.
Packaging & Storage
1. Packaging: Packed in 25 kg bags or 1 MT jumbo bags. Custom packaging is
available upon request.
2. Storage: Store in a dry, cool, and ventilated place. Avoid exposure to
moisture and direct sunlight.
Precautions
1. Avoid inhalation of zinc oxide powder; use proper protective
equipment.
2. Handle with care to prevent contamination or spillage.
3. Follow local regulations for disposal of waste materials.
4. Keep away from acidic substances to avoid chemical reactions.
