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[Chemical Knowledge]：Properties and Uses of Formaldehyde (37%)

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The nature and use
of formaldehyde (37%) in the field of raw materials for chemical production
1. Introduction

Formaldehyde is an important organic compound, widely used in the field of raw materials for chemical production. In this paper, the nature and use of formaldehyde (37%) will be discussed in detail.

2. the nature of formaldehyde

formaldehyde is a colorless, pungent odor gas, molecular formula HCHO, with high reactivity. In industry, formaldehyde usually exists in the form of aqueous solution, which contains 37% formaldehyde gas. Formaldehyde has the following properties:

1. Soluble in water: Formaldehyde is soluble in water, the formation of formaldehyde aqueous solution.
2. reducibility: formaldehyde has strong reducibility and can be oxidized to formic acid.
3. Reactivity: formaldehyde has high reactivity and can react with many compounds such as addition and condensation.

3. the use of formaldehyde

formaldehyde as an important chemical raw material, has a wide range of uses in the field of chemical production:

1. Synthetic resin: formaldehyde can react with phenol, urea and other compounds to generate phenolic resin, urea-formaldehyde resin, etc. These resins have good water resistance, heat resistance, insulation and other properties, and are widely used in building materials, furniture manufacturing and other fields.
2. synthetic fibers: formaldehyde can react with ethylene glycol and other compounds to generate polyester, nylon and other synthetic fibers, which are widely used in textiles, clothing and other fields.
3. synthetic rubber: formaldehyde can react with butadiene and other compounds to generate synthetic rubber such as styrene butadiene rubber, which is widely used in the production of rubber products such as tires and rubber hoses.
4. Preservatives: Formaldehyde can be used for preservation of biological products, food, etc., to extend its shelf life.

4. conclusion

formaldehyde (37%) as an important chemical raw material, has a wide range of applications in the field of chemical production raw materials. Through the discussion of the nature and use of formaldehyde, we can better understand the application field and function of formaldehyde, and provide a useful reference for the production of chemical products. In the process of using formaldehyde, it is necessary to pay attention to its toxicity and safety issues, comply with relevant production and use regulations, and ensure the safety of human health and ecological environment.

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