Physicochemical properties and preparation of zinc oxide

Physical and chemical properties

Physical properties

Appearance and properties: white powder or hexagonal crystals. Odorless, tasteless, and non-sandy. It turns yellow when heated, and turns white again after cooling, and sublimates when heated to 1800°C. The hiding power is half that of titanium dioxide and zinc sulfide. The tinting strength is twice that of basic lead carbonate.

Solubility: soluble in acid, concentrated alkali hydroxide, ammonia and ammonium salt solution, insoluble in water and ethanol.

Chemical properties

Zinc oxide is a famous white pigment, commonly known as zinc white. Its advantage is that it does not become black when it encounters H2S gas, because ZnS is also white. When heated, ZnO gradually changes from white to light yellow to lemon yellow. When it cools, the yellow fades away. Using this feature, it can be mixed into paint or added to a thermometer to make a color-changing paint or a color-changing thermometer. Because ZnO has astringency and certain bactericidal ability, it is often used as an ointment in medicine. ZnO can also be used as a catalyst.

Chemical reaction formula:

React with NaOH: ZnO+2NaOH+H2O=Na2[Zn(OH)4]

Overview of zinc oxide

Zinc oxide is a famous white pigment, commonly known as zinc white. It has the advantage of not turning black in the presence of H2S gas, because ZnS is also white. When heated, ZnO gradually changes from white and light yellow to lemon yellow. After cooling, the yellow color will gradually disappear. Using this feature, it can be mixed into paint or added to a thermometer to make a color-changing paint or thermometer. Because ZnO has astringency and a certain sterilization ability, it is often used as an ointment in medicine. ZnO can also be used as a catalyst. Zinc oxide ZnO is used as an additive in many materials and products, including cosmetics, food supplements, rubber, plastics, ceramics, glass, cement, lubricants, coatings, ointments, adhesives, sealants, pigments, food, batteries, Ferrite, flame retardant, and most importantly-adhesive tape

Application of zinc oxide

1. Mainly used in rubber or cable industry as a reinforcing agent and activator, also as a colorant and filler for white glue, and used as a vulcanizing agent in neoprene rubber, etc.

2. Used for fine desulfurization of raw gas in the fertilizer industry

3. Mainly used as white pigment, rubber vulcanizing activator, organic synthesis catalyst, desulfurizing agent, used in xerography, pharmacy, etc.

4. Used for desulfurization of synthetic ammonia, petroleum and natural gas chemical raw materials

5. Used as a matrix for analysis reagents, reference reagents, fluorescent agents and photosensitive materials

6. Used for electrostatic wet copying, dry transfer printing, laser fax communication, electrostatic recording of electronic computers, and electrostatic plate making files

7. Used in the plastic industry, sunscreen cosmetics, special ceramic products, special functional coatings and textile sanitary processing, etc.

8. It is widely used in the deep desulfurization and purification process of industrial raw gas and oil such as synthetic ammonia, methanol and hydrogen production.

9. Used as an astringent, used to make ointments or plasters

10. Used as a white pigment, used in printing and dyeing, papermaking, matches and pharmaceutical industries. In the rubber industry, it is used as a vulcanization activator, reinforcing agent and coloring agent for natural rubber, synthetic rubber and latex. It is also used in the manufacture of pigments such as zinc chrome yellow, zinc acetate, zinc carbonate, and zinc chloride. In addition, it is also used in the manufacture of electronic laser materials, fluorescent powder, feed additives, catalysts, and magnetic materials as zinc supplements in feed processing.

11. Inorganic white pigment. The tinting strength is not as good as titanium dioxide and lithopone. It is widely used for the coloring of ABS resin, polystyrene, epoxy resin, phenolic resin, amino resin and polyvinyl chloride, as well as paints and inks. In addition, it can also be used as a vulcanization activator, reinforcing agent and coloring agent for rubber in the rubber industry. It is also used in the production of varnished cloth, cosmetics, enamel, paper, leather, matches, cables, etc. It can also be used in printing and dyeing, glass industry, pharmaceutical industry, etc. It is also used as a desulfurizer for synthetic ammonia. It is also used as electronic laser material, fluorescent powder, feed additive, magnetic material manufacturing, etc.

12. Nutritional supplements (zinc fortifiers).

13. Zinc oxide is a nutrient enhancer for feed.

14. Mainly used as a reinforcing agent for rubber or cables, so that the rubber has good corrosion resistance, tear resistance and elasticity. It is also used as a vulcanization activator for natural rubber, a colorant and filler for white rubber, and a vulcanizing agent for neoprene. Smaller particles (about 0.1μm in diameter) can be used as light stabilizers for plastics such as polyolefin or polyvinyl chloride.

15. Used for desulfurization of synthetic ammonia feed gas.

16. It is used as paint for paint and filler for rubber, and it is used to make ointment, zinc paste, adhesive plaster, etc. in medicine.

17. It is suitable for use as a zinc supplement in feed processing.

18. Mainly used as white pigment, rubber vulcanization activator, reinforcing agent, organic synthesis catalyst, desulfurizing agent.

19. It is used for the desulfurization of synthetic ammonia, petroleum and natural gas chemical raw materials.

20. Used as a matrix for analysis reagents, reference reagents, fluorescent agents and photosensitive materials.

21. It is mainly used as a reinforcing agent and activator in the rubber or cable industry, as a coloring agent and filler for white glue, and as a vulcanizing agent in neoprene.

22. Shimane University in Japan developed luminescent zinc oxide nanoparticles. Zinc oxide is often used in the production of baby powder and other products. It is a non-toxic inorganic substance. The human body will not produce rejection reactions to it, so it is highly safe. In addition, zinc oxide nanoparticles are small in size and have the advantage of not hindering cell activity.

The price of zinc oxide

The price of zinc oxide will vary randomly with the production cost, transportation cost, international situation, and market supply and demand of zinc oxide. Tanki New Materials Co.,Ltd aims to help all industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for zinc oxide, please feel free to send an inquiry to get the latest price of zinc oxide.

Zinc Oxide Supplier

As a global lithium sulfide supplier, Tanki New Materials Co. Ltd has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (cerium oxide, zinc oxide, oxide Nickel), high-purity targets, functional ceramics and structural devices, and provide OEM services.