Its chemical formula is ZnS. Its molecular weight, 134.72. It is created by interacting through ionic interactions with zinc ions, (Zn2+), and sulfur ions, (S2-). In the crystal, the sulfur ions form a regular tetrahedron with the zinc ion in the center. The sulfur ion occupies the center of the tetrahedron. This structure can also be described as a face centered cubic crystal system where zinc and sulfur are located in the vertex of the lattice and at the center of the face.
Zinc Sulfide (also known as Zinc Sulfide) is an insoluble, white solid. It is not soluble in water. However, it is soluble with bases and acids. Zinc sulfide’s density is 3,98 grams per cubic centimeter, with a melting and boiling temperature of 1 350 degrees C. The light transmission range of zinc sulfide is between 200 and 400nm. Its chemical properties are stable but under certain circumstances it can also change. zinc Sulfide is oxidized by an oxidizing substance to produce zinc sulfate. In an environment that is alkaline, zinc sulfide will react with hydroxide molecules to produce zinc hydroxide.
Application Of Zinc Sulfide
Zinc sulfide, also known as zinc sulfur, is a significant compound. The unique structure of its crystal and its chemical and physi-cal properties have made it widely useful in a variety of fields. We will discuss the various applications of zinc sulfide.
1. Manufacturers of phosphor
Zinc Sulfide is a widely used phosphor, particularly in the production of fluorescent screens. It also has many applications for fluorescent lamps. Zinc sulfide, used in the manufacture of fluorescent screens, can be made into phosphors, which can then emit light to display an image when they are excited by external lights. When producing fluorescent lights, zinc-sulfide also makes phosphors which emit visible light after being excited by ultraviolet radiation.
2. Manufacturing of photoelectric conversion materials
Zinc Sulfide, a material important for photoelectric conversion, can be used in the manufacture of solar cells. Zinc sulfide converts light energy into electrical power in solar cells. The photoelectric efficiency of zinc sulfide, combined with its low cost, makes it a material that has wide applications.
3. Drug Manufacturing
Zinc Sulfide, because of its biological activity has certain applications in pharmaceutical production. Zinc sulfide is used in the manufacture of anti-malarials, like zinc sulfate, and zinc acetate. zincsulfide may also be used for the production of preservatives and fungicides.
4. catalyst manufacturing
Zinc sulfur acts as a catalyst for the creation of other compounds like zinc acetates, acetones, and methylisobutylketones. Zinc sulfur is a highly active and selective catalyst in manufacturing.
5. Optical device manufacturing
Due to its high transparency, zinc sulfur is used widely in optical devices. Zinc sulfide is used, for instance, in optical fiber communication to produce optical fiber preforms. Additionally, zinc sulfide may be used to make optical devices like optical Windows and lenses.
Production Method for Zinc Sulfide
1. Method of chemical precipitation
The chemical precipitation method is the most common way to prepare zinc sulfide. The zinc sulfide was obtained by mixing zinc salt with sulfur salt.
Preparation Solution: Dissolve a suitable amount of zinc salt and sulfur salt into water to create a solution.
Precipitation reaction : the above solution is heated in stirring conditions and a precipitating agent of appropriate amount is added to precipitate sulfur ions as well as zinc ions. This results in zinc sulfide.
Filtration : The reaction is filtered in order to obtain a filtrate that contains zinc-sulfide precipitation.
Cleaning: The zinc-sulfide precipitation filtered through a filter is cleaned with alcohol in order to remove impurities.
Drying: After washing the zinc sulfide it is precipitated then dried to get zinc sulfide.
Chemical precipitation is easy to do, inexpensive, and produces a product of high purity. The disadvantages of this method are that it requires many detergents and precipitating agents. Also, the waste liquid generated must be further processed before being discharged, which can cause environmental pollution.
2. Synthesis of solid phases at high temperatures
Traditional methods for the preparation of zinc sulfide include high-temperature solid-phase synthesis. A solid reaction between zinc oxides and sulfur-containing elements was used to produce zinc sulfide.
Ingredients: To make raw materials, the appropriate amount of carbon powder, zinc oxide powder, and sulfur dioxide powder is mixed.
Pretreatment: The raw material is pretreated at high temperature to ensure that all components react and generate zinc vapor.
Synthesis: Zinc and sulfur vapors are produced at high temperatures.
Collection: The powdered zinc sulfide is collected and processed accordingly.
High-temperature, solid-phase synthesis is a relatively straightforward process that has many advantages, including high purity and good crystallinity. The method does require high-temperatures and a lot of carbon and sulfur powders, which can cause some environmental pollution.
3. Solventothermal Method
The solvothermal process is a method that has been developed to prepare zinc sulfide. The method is to dissolve zinc salts and sulfur salts in organic solvents under high pressure and temperature. This produces zinc sulfide by hydrothermal reaction.
Preparation Solution: Dissolve an appropriate amount of zinc salt and sulfur in organic solvent.
High temperature and pressure reaction: The above-mentioned solution is placed in the high-temperature reactor and under high-pressure conditions, a hydrothermal process is performed to produce zinc-sulfide.
The generated zinc powder is collected, and treated as required.
The solvothermal technique has the advantage of a high purity product, good crystallinity and a relatively straightforward process. The method is also capable of using different organic solvants and reaction conditions in order to regulate product properties. The method is not without its limitations. It requires high-temperature, pressure equipment. And the recovery and disposal process of organic solvents are expensive and require certain technology.
It is important to consider the advantages and limitations of different methods of production of zinc sulfide, and to select the appropriate methods according to actual conditions and needs. During the production, it is important to take into account environmental protection and safety. Adopting appropriate environmental protection technologies and measures will help reduce the harm caused to the environment and humans.
Prospect Market of Zinc Sulfide
1. phosphor market prospects
Zinc sulfur is widely used to manufacture phosphor. Phosphor can emit light in different colors and absorb light. It is used widely in the display, lighting, photovoltaic, and other fields. Luminous materials are being used in more and more fields, including solar cells and biomedicine. Zinc sulfide has become an important material for phosphors, and the market is growing.
2. Photoelectric conversion materials: market outlook
Zinc sulfur is also widely used for the production of photoelectric materials. Photoelectric materials convert light energy to electricity. Solar cells is the most common use. The demand for solar panels is increasing as renewable energy becomes more important. The cost of photoelectric converter materials has also been steadily decreasing, as technology continues to improve.
3. Market prospects for drug manufacturing
Zinc Sulfide has also been used in the pharmaceutical industry. The pharmaceutical industry is a massive market. As people become more health-conscious, the demand for drugs increases. Zinc Sulfide can be used for antimalarial drug production and has a biological activity.
4. Prospects for the manufacturing of catalysts
Zinc sulfur is used for some catalyst production. Catalysts are substances that accelerate chemical reaction and have a variety of applications, including in the fields of environmental protection, pharmaceuticals, and chemical industries. As technology continues to develop, so do the demands for catalytic performance and selectivity. This provides more opportunities for using zinc sulfide as a catalyst.
5. The optical device market is expected to grow at a rapid rate.
Zinc sulfur is also widely employed in the manufacture of optical devices. The optical device has multiple applications, including communication, imaging and optical storage. It can modulate and transmit the light. As technology continues to develop, performance requirements for optical products are increasing. This provides more opportunities to apply zinc sulfide when manufacturing optical devices.
Price of Zinc Sulfide Poudre :
Many factors influence the price of a product, such as the economic activity in the industry, the demand and supply on the market.
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