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[Chemical Knowledge]：Properties and Uses of Industrial Sulfur

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The nature and use
of industrial sulfur in the field of chemical production raw materials
Abstract

This paper introduces in detail the nature and use of industrial sulfur in the field of chemical production raw materials. Through the discussion of the physical properties, chemical properties and safety of sulfur, the important position of sulfur in chemical production is expounded. At the same time, this paper also lists the specific applications of industrial sulfur in various fields, including rubber, plastics, dyes, pesticides and other industries, further proving its important economic value.

1. Introduction

As an important chemical raw material, industrial sulfur plays an important role in the production of chemical products. With the continuous development of science and technology, the application field of sulfur is becoming more and more extensive. In this paper, the nature and use of industrial sulfur will be discussed in depth, in order to provide a useful reference for the production of chemical products.

2. industrial sulfur properties

1. physical properties

industrial sulfur is usually a yellow solid, with a high degree of crystallinity. It has a melting point of about 119°C and a boiling point of about 444.6°C. Sulfur is insoluble in water, but soluble in carbon disulfide, carbon tetrachloride and other organic solvents.

2. Chemical properties

sulfur is stable at room temperature, but it can react with oxygen to generate sulfur dioxide and hydrogen to generate hydrogen sulfide under heating conditions. In addition, sulfur is also reductive and can react with many metal oxides to produce the corresponding metal sulfides.

3. Safety

Although sulfur itself is low toxic, the sulfur dioxide and hydrogen sulfide gas produced by its combustion are harmful to human body. Therefore, strict safety management of sulfur storage and use is required in industrial production.

III. Uses of Industrial Sulfur

1.

in the rubber industry In the rubber industry, sulfur is widely used as a vulcanizing agent. By adding sulfur to rubber, the strength, hardness, wear resistance and aging resistance of rubber can be improved.

2.

in the plastics industry Sulfur can be used as a crosslinking agent in the plastics industry to improve the heat resistance, weather resistance and mechanical properties of plastics.

3. Dye industry

In the dye industry, sulfur can be used to prepare some sulfur dyes, such as sulfur black, sulfur blue, etc.

4. Pesticide industry

sulfur has a wide range of applications in the pesticide industry and can be used as a fungicide and insecticide. For example, lime-sulfur mixture is a common pesticide made of lime, sulfur and water, which has the effect of controlling diseases and insect pests.

5. Other fields

In addition to the above fields, industrial sulfur can also be used for the preparation of sulfuric acid, sodium sulfide and other chemical products, as well as for leather tanning and metal smelting industries.

IV. Conclusion

Industrial sulfur plays an important role in the field of raw materials for chemical production, and its unique nature and wide range of uses provide important economic value for various industries. With the continuous progress of science and technology, the application field of sulfur will continue to expand. Therefore, strengthening the research on the nature and use of industrial sulfur will help to improve the quality and efficiency of chemical production and promote the sustainable development of the chemical industry.

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