Shandong Jiurunfa Chemical Technology Co., Ltd.
Shandong Jiurunfa Chemical Technology Co., Ltd.
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White Powder Or Hexagonal Crystals Zinc Oxide Purity ≥99.9% Insoluble In Water
Basic properties of zinc oxide
Zinc oxide (ZnO) is a white to light yellow powder, non-toxic and odorless, insoluble in water and organic solvents, but soluble in acids and strong bases. It has high thermal and chemical stability, with a melting point of about 1975°C and a boiling point of up to 2360°C. The crystal structure of zinc oxide is diverse, the most common of which is the hexagonal wurtzite structure, which gives zinc oxide excellent electrical, optical and piezoelectric properties.
Preparation method of zinc oxide
There are many methods for preparing zinc oxide, mainly including direct method, indirect method (wet chemical method) and physical method. The direct method usually directly obtains zinc oxide by oxidation of metallic zinc. This method is simple in process but has low purity. The indirect method is to prepare zinc oxide through chemical reactions such as precipitation, hydrolysis or thermal decomposition of zinc salt solution. This method can obtain high-purity products. The physical method mainly includes vapor deposition method and sputtering method, which are suitable for preparing thin film or coating materials.
|
Item |
Specification |
|
Chemical Formula |
ZnO |
|
Molecular Weight |
81.38 g/mol |
|
Appearance |
White powder |
|
Purity |
≥99.9% |
|
Particle Size |
20-50 nm (Nanometer) |
|
Specific Surface Area |
20-30 m²/g |
|
Melting Point |
1975°C |
|
Density |
5.606 g/cm³ |
|
Solubility |
Insoluble in water |
Characteristics of zinc oxide
1.High chemical stability: able to remain stable in harsh environments such as high temperature, high pressure, strong acid, strong alkali, etc.
2.Good electrical conductivity: suitable for electronics, communications, electricity and other fields.
3.Unique physical properties: high refractive index, low dielectric constant, high light transmittance, etc.
4.Environmentally friendly and non-toxic: harmless to the human body and the environment.
5.Skin protection: has anti-inflammatory, antibacterial, wound healing and sun protection effects.
Advantages
Broad Application Fields: Suitable for plastics, silicate products, synthetic rubber, lubricating oils, paints and coatings, ointments, adhesives, foods, batteries, flame retardants, and many other products.
Excellent Luminescent Properties: Applied in semiconductor products such as liquid crystal displays (LCDs), thin-film transistors (TFTs), and light-emitting diodes (LEDs).
Effective Sunscreen Agent: Capable of absorbing ultraviolet (UV) radiation, providing broad-spectrum UV protection (both UVA and UVB).
Application Fields
Rubber Industry: Acts as a reinforcing agent and activator, enhancing rubber's elasticity and abrasion resistance.
Cosmetics: Offers oil absorption and concealing properties, suitable for sensitive skin.
Semiconductor Field: Used in the manufacture of LCDs, TFTs, LEDs, and other products.
Pharmaceutical Industry: Utilized in the production of ointments and sunscreens, providing skin protection and sunscreen effects.
Eco-friendly Materials: Used in the production of eco-friendly paints and plastics.
Theory
Zinc oxide belongs to the N-type semiconductor category, exhibiting excellent luminescent properties at room temperature. It has a large energy band gap and exciton binding energy, resulting in high transparency. The principle of zinc oxide absorbing UV radiation is that electrons in the valence band can absorb energy from UV radiation and undergo transitions. The function of scattering UV radiation is related to the particle size of the material, with nanoscale particles offering significant advantages.
Services
Customized Production: Offers products with different particle size specifications according to customer requirements.
Technical Support: Provides professional technical consultations and solutions.
After-Sales Support: Offers comprehensive after-sales service to ensure customer satisfaction.
Packaging and Storage
Packaging: Uses sealed packaging to ensure the product remains free from moisture and contamination.
Storage: Should be stored in a dry, well-ventilated, cool place, avoiding direct sunlight and high temperatures.
Preventive Measures
Skin Contact: Wear protective gloves during use to avoid prolonged skin contact.
Eye Contact: If it accidentally splashes into the eyes, rinse immediately with plenty of water and seek medical attention.
Respiratory Protection: Wear a dust mask during operation to avoid inhaling dust.
Fire Precautions: Although zinc oxide is non-flammable, it should be kept away from fire sources and flammable materials.