Description of Zinc Sulfide :
Zinc sulfide chemical formula is ZnS, and the molecular weight is 134.72. It is formed by interacting with zinc ions (Zn2+) and sulfur ions (S2-) through ionic bonds. The zinc ion is located in the center of a regular tetrahedron formed by four sulfur ions in the crystal structure. In contrast, the sulfur ion is located in the center of a tetrahedron. This structure can be described as a face-centered cubic crystal system in which zinc and sulfur ions occupy the vertex and face-centered positions of the lattice, respectively.
Zinc Sulfide is an insoluble white solid that is insoluble in water but is soluble in bases and acids. Its density is 3.98 grams per cubic centimeter with a melting temperature of 1350 degrees C and an optimum boiling temperature of 1650 degrees C. Zinc sulfide has high hardness and good optical transparency, and its light transmission range is 200-400nm. The chemical properties of zinc sulfide are relatively stable, but it can also react under certain conditions. For example, in the presence of an oxidizing agent, zinc sulfide can be oxidized to form zinc sulfate. In an alkaline environment, zinc sulfide can react with hydroxide ions to form zinc hydroxide.
Application of Zinc Sulfide :
Zinc sulfide is an important zinc sulfur compound. Due to its crystal’s unique structure and its chemical and physical properties, it has been extensively utilized in numerous fields. The application of zinc sulfide in various fields will be described in detail below.
1. phosphor manufacturing
Zinc sulfide is an important phosphor material, especially in the manufacture of fluorescent screens and fluorescent lamps has a wide range of applications. In fluorescent screen manufacturing, zinc sulfide can make phosphors that, when excited by external light, can emit different light colors to display the image. In fluorescent lamp manufacturing, zinc sulfide can also make phosphors, emitting visible light when excited by ultraviolet light, producing fluorescent lamps of various colors.
2. photoelectric conversion material manufacturing
Zinc sulfide is also an important photoelectric conversion material that can be used to make solar cells. In solar cells, zinc sulfide can convert light energy into electricity. Its photoelectric conversion efficiency is high, and the cost is relatively low, so it is a photoelectric conversion material with wide application prospects.
3. drug manufacturing
Zinc sulfide has a certain biological activity, so it has a certain application in pharmaceutical manufacturing. For example, zinc sulfide can make anti-malarial drugs, such as zinc sulfate and zinc acetate. In addition, zinc sulfide can also be used in the manufacture of fungicides and preservatives.
4. catalyst manufacturing
Zinc sulfur can be a catalyst to create other compounds, such as zinc acetate, acetone, and methyl isobutyl ketone. Zinc sulfide is an excellent catalyst material in manufacturing because of its high activity and selectivity.
5. Optical device manufacturing
Because of its high optical transparency, zinc sulfide is widely used to manufacture optical devices. For example, zinc sulfide can be used in optical fiber communications to manufacture optical fiber preforms. In addition, zinc sulfide can also be used to manufacture optical devices such as optical Windows and optical lenses.
Production Method of Zinc Sulfide :
1. chemical precipitation method
Chemical precipitation is a common method for preparing zinc sulfide. By mixing zinc salt and sulfur salt in a solution, precipitation, filtration, and drying of zinc sulfide powder were obtained:
Preparation solution: Dissolve an appropriate amount of zinc and sulfur salt in water to make a solution.
Precipitation reaction: The above solution is heated under stirring conditions, and an appropriate amount of precipitating agent is added to precipitate zinc ions and sulfur ions to generate zinc sulfide precipitation.
Filtration: The reaction solution is filtered to obtain a filtrate containing zinc sulfide precipitation.
Washing: The filtered zinc sulfide precipitation is washed with alcohol to remove residual impurities and solvents.
Drying: The zinc sulfide, after washing, is precipitated and dried to obtain zinc sulfide powder.
The advantages of chemical precipitation are simple to process, low cost, and high product purity. However, this method requires many precipitating agents and detergents, and the generated waste liquid must be further treated before discharge, which has a certain environmental pollution.
2. high-temperature solid phase synthesis method
High-temperature solid phase synthesis is a traditional method for preparing zinc sulfide. Zinc sulfide powder was obtained by a solid reaction of zinc and sulfur oxides or elements at high temperatures:
Ingredients: The appropriate amount of zinc oxide, carbon powder, and sulfur powder is mixed in a certain proportion to make raw materials.
Pretreatment: The raw materials are pretreated at high temperatures so that each component fully reacts to generate zinc and sulfur vapor.
Synthesis: The generated zinc and sulfur vapor are synthesized at high temperatures to produce zinc sulfide powder.
Collection: The synthetic zinc sulfide powder is collected and treated accordingly.
The advantages of high-temperature solid-phase synthesis are high purity, good crystallinity, and a relatively simple process. However, this method requires high-temperature conditions and a large amount of carbon powder and sulfur powder, which has a certain environmental pollution.
3. solvothermal method
The solvothermal method is a new method for preparing zinc sulfide. The method dissolves zinc salt and sulfur salt in organic solvent under high temperature and high pressure and generates zinc sulfide powder through hydrothermal reaction:
Preparation solution: Dissolve the appropriate amount of zinc and sulfur salt in the organic solvent to make a solution.
High temperature and high-pressure reaction: The above solution is placed in a high-temperature and high-pressure reactor, and the hydrothermal reaction is carried out under high temperature and high-pressure conditions to produce zinc sulfide powder.
Collection: The generated zinc sulfide powder is collected and treated accordingly.
The solvothermal method has the advantages of high product purity, good crystallinity, and a relatively simple process. In addition, the method can use different organic solvents and reaction conditions to regulate the product properties. However, this method requires high-temperature and pressure equipment, and the recovery and disposal of organic solvents require a certain cost and technology.
In short, different production methods of zinc sulfide have advantages and disadvantages, and the selection of appropriate production methods needs to be comprehensively considered according to the actual needs and conditions. At the same time, it is necessary to pay attention to environmental protection and safety issues in the production process and adopt appropriate environmental protection measures and technologies to reduce harm to the environment and human beings.
Prospect Market of Zinc Sulfide :
1. phosphor market prospects
Zinc sulfide is widely used in phosphor manufacturing. Phosphor is a material that can absorb light and emit different colors of light, which is widely used in display, lighting, and photovoltaic fields. With the continuous development of science and technology, the application fields of phosphors are also expanding, such as increasing applications in solar cells, biomedicine, and optical storage. Therefore, zinc sulfide is an important phosphor material, and its market demand is also growing.
2. photoelectric conversion materials market prospects
Zinc sulfide is also widely used in the manufacture of photoelectric conversion materials. Photoelectric conversion materials can convert light energy into electricity; solar cells are the most common application. As the emphasis on renewable energy is growing, the demand for solar cells is also growing. In addition, with the continuous development of technology, the efficiency of photoelectric conversion materials is also constantly improving, and the cost is constantly reducing, which makes the application prospect of zinc sulfide in photoelectric conversion materials broader.
3. drug manufacturing market prospects
Zinc sulfide also has some applications in the field of pharmaceutical manufacturing. The pharmaceutical manufacturing sector is a huge market, and as people’s attention to health increases, so does the demand for medicines. Zinc sulfide has a certain biological activity and can be used to manufacture antimalarial drugs, so it has a broad application prospect in drug manufacturing.
4. catalyst manufacturing market prospects
Zinc sulfide also has some applications in the field of catalyst manufacturing. A catalyst is a substance that can accelerate chemical reactions and has a wide range of applications in chemical, pharmaceutical, and environmental protection fields. With the continuous development of technology, the requirements for catalyst performance and selectivity are also increasing, which provides more opportunities for applying zinc sulfide in catalyst manufacturing.
5. optical device manufacturing market prospects
Zinc sulfide is also widely used in optical device manufacturing. The optical device can transmit and modulate light and has a wide range of applications in communication, imaging, and optical storage. With the continuous development of technology, the performance requirements for optical devices are also increasing, which provides more opportunities for applying zinc sulfide in optical device manufacturing.
Zinc Sulfide Powder Price :
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