Product Details
Place of Origin: Shandong China
Brand Name: JIURUNFA
Certification: ISO9001
Model Number: 99.9%
Payment & Shipping Terms
Minimum Order Quantity: 1
Price: Negotiable
Packaging Details: 25/50KG woven bag lined with plastic bags, or according to the requirements of customers.
Delivery Time: 7-15 Days
Payment Terms: T/T,L/C,D/A,D/P
Supply Ability: 30000 Ton/Month
Chemical Formula: |
ZnO |
Solubility In Water: |
Negligible |
Melting Point: |
1,975°C |
Uses: |
Sunscreen, Pigment, Semiconductor |
Thermal Conductivity: |
20.6 W/m·K |
Crystal Structure: |
Wurtzite |
Density: |
5.606 G/cm³ |
Molecular Weight: |
81.39 G/mol |
Chemical Formula: |
ZnO |
Solubility In Water: |
Negligible |
Melting Point: |
1,975°C |
Uses: |
Sunscreen, Pigment, Semiconductor |
Thermal Conductivity: |
20.6 W/m·K |
Crystal Structure: |
Wurtzite |
Density: |
5.606 G/cm³ |
Molecular Weight: |
81.39 G/mol |
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.
| Parameter | Value |
|---|---|
| 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 |
The direct method, also known as the French process, involves the following steps:
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.