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[Chemical Knowledge]：Properties and Uses of Paraxylene

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Paraxylene is an important raw material for chemical production and has a wide range of uses. The following is a detailed description of the properties and uses of paraxylene.

1. the nature of paraxylene

paraxylene is a colorless and transparent, aromatic smell of liquid. Its molecular formula is C8H10 and its molecular weight is 106.17. Paraxylene is insoluble in water, but is miscible with many organic solvents. It has a boiling point of 138°C, a melting point of 12.8°C and a flash point of 25°C. Paraxylene is flammable, explosive, and toxic, so special attention should be paid to safety during production, transportation and use.

2. of paraxylene use

1. Production of polyester fiber
of paraxylene is the production of polyester fiber (polyester) an important raw material. Polyester fiber is a synthetic fiber with good wrinkle resistance, shape retention and elasticity, and is widely used in textiles, clothing, home textiles and other fields.

2. Production of plastic
Paraxylene can also be used to produce various plastics, such as polyester plastics, ABS plastics, etc. These plastics have excellent mechanical properties, chemical corrosion resistance, heat resistance, etc., and are widely used in home appliances, automobiles, construction and other fields.

3. Production of fine chemicals
p-xylene can also be used to produce many fine chemicals, such as phthalic anhydride, maleic anhydride, ethylene glycol, etc. These chemicals are important intermediates for the production of pharmaceuticals, pesticides, dyes, etc.

In short, p-xylene is an important raw material for chemical production and plays an important role in the national economy.

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