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Difference of paraformaldehyde
1. Basic Concepts and Molecular Structure
Formaldehyde (formaldehyde) is a colorless, flammable chemical, molecular formula for H₂ CO, widely used in formaldehyde resin, industrial production and indoor air treatment and other fields. Formaldehyde is a low molecular weight substance with simple molecular structure, strong irritation and flammability.
Paraformaldehyde (polyformaldehyde), is a kind of polyoxymethylene, its molecular structure by formaldehyde through cross-linking polymerization, the formation of polymer materials. Paraformaldehyde has excellent thermal stability, chemical stability and long storage period, because of its excellent performance, is widely used in industry, construction and packaging and other fields.
2. nature and use of the difference
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molecular weight and physical properties Formaldehyde is a low-molecular substance with a small molecular weight and simple physical properties; while paraformaldehyde has a large molecular weight, high thermal stability, and stronger high temperature resistance, which makes it stable at high temperatures.
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Field of use Formaldehyde is mainly used to make formaldehyde resin and is widely used in industrial production; while paraformaldehyde is used to make polymer materials, such as packaging materials, building decoration materials, etc., with better processing performance and longer service life.
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Security Formaldehyde has high toxicity and is harmful to human body and environment. Although paraformaldehyde has certain toxicity, its toxicity and stability are significantly improved compared with formaldehyde.
and paraformaldehyde integrated application
Because of its excellent performance, paraformaldehyde has shown greater potential in the field of environmental protection and industry. Compared with formaldehyde, paraformaldehyde is widely used in environmental protection materials, such as packaging materials, decorative materials, etc. Its excellent heat resistance and stability make it occupy an important position in these fields.
Summary
Although formaldehyde and paraformaldehyde belong to the same formaldehyde family, there are significant differences in molecular structure, properties and uses. Formaldehyde as a low molecular material, suitable for industrial production; and paraformaldehyde as a polymer material, more suitable for environmental protection and construction fields. Choosing the right formaldehyde derivatives can meet the needs of different scenarios and achieve lower environmental protection and higher efficiency.
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