Solubility Insoluble In Water Zinc Oxide Melting Point 1975°C
Purity ≥99.9%
High-purity zinc oxide product description:
High-purity zinc oxide (ZnO) is a high-quality inorganic compound,
commonly used in high-tech fields such as electronics,
optoelectronics and semiconductors. It is purified through a
precise production process to achieve extremely high purity
(usually above 99.99%) and has excellent optical, electrical and
chemical properties. This high-purity zinc oxide is widely used in
optoelectronic devices, ultraviolet detectors, solar cells,
electronic components and other high-precision industries.
Zinc Oxide Parameters
| Parameter Name | Unit | Value Range/Description |
| Chemical Formula | - | ZnO |
| Molecular Weight | g/mol | 81.39 |
| Appearance | - | White powder or hexagonal crystals |
| Density | g/cm³ | Approximately 5.60-5.67 (varies with preparation method and purity) |
| Melting Point | °C | 1975 |
| Boiling Point | °C | 2360 (sublimes) |
| Refractive Index | - | Approximately 2.008-2.029 (varies with wavelength) |
| Band Gap | eV | Approximately 3.37 (at room temperature) |
| Purity | % | 99.0%-99.99% (depending on application requirements) |
| Particle Size Distribution | nm | Various sizes available, such as 20nm, 50nm, 100nm, 1μm, etc. |
| Specific Surface Area | m²/g | Typically in the range of 10-150m²/g, depending on particle size |
| Hygroscopicity | - | Low hygroscopicity, but may absorb moisture over time if exposed to
humid conditions |
| Solubility | - | Insoluble in water, slightly soluble in alcohols, soluble in dilute
acids, sodium hydroxide solutions, and ammonium chloride solutions |
| Thermal Stability | - | Stable at high temperatures, but prolonged exposure to high
temperatures may cause discoloration or phase transformation |
| Electrical Conductivity | S/m | As a semiconductor, electrical conductivity varies with doping and
temperature |
| UV Absorption | - | Effectively absorbs UVA and UVB ultraviolet radiation, providing
good sunscreen properties |
| Antibacterial Properties | - | Inhibits the growth of various bacteria and fungi, suitable for
antibacterial materials |
Features:
1.Extremely high purity: purity can reach more than 99.99%,
suitable for applications with extremely high material
requirements.
2.Excellent optical properties: good transmittance in the
ultraviolet region, can be used in ultraviolet light devices.
3.Good electrical properties: semiconductor properties, suitable
for electronic and optoelectronic devices.
4.Chemical stability: excellent thermal stability and chemical
stability, adaptable to a variety of harsh working environments.
5.Low impurity content: strict control of impurities during the
production process to ensure the high performance of the material.
Chemical properties
Chemical stability: Zinc oxide has high chemical stability and can
remain stable in harsh environments such as high temperature, high
pressure, strong acid, and strong alkali. This stability makes zinc
oxide widely used in many industrial fields.
Amphoteric oxide properties: Zinc oxide is an amphoteric oxide that
can react with both acid and alkali.
Catalytic effect: Zinc oxide has a certain catalytic activity and
can be used as a catalyst to participate in various chemical
reactions and accelerate the reaction process.
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.
