Terephthaloyl chloride CAS 100-20-9
Chemical name: Terephthaloyl chloride
Synonymous names:TCl;p-phthaloyl chloride;Terephthaloyl chloride
CAS No:100-20-9
Molecular formula:C8H4Cl2O2
Molecular weight:203.02
EINECS No:202-829-5
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Structural formula:
Product Description:
Items |
Specifications |
Appearance |
White powder |
Assay,% |
99 MIN |
Melting point |
79-81 °C(lit.) |
Boiling point |
266 °C(lit.) |
Density |
1,34 g/cm3 |
Vapor density |
7 (vs air) |
Properties and Usage:
Terephthaloyl chloride is an important organic chemical raw material widely used in the production of polymers and dyes. The following is an overview of its properties, applications, and safety considerations:
Applications:
1. Polymer production:
Aramid fiber: Terephthaloyl chloride is one of the key raw materials for the production of aramid (such as Kevlar). When reacting with p-phenylenediamine, polyamide (Kevlar) is formed. This material has extremely high strength and heat resistance and is widely used in bulletproof vests, aerospace, tire reinforcement and other fields.
Polyester resin: It is an intermediate for making high-performance polyester resins and is often used to make chemical-resistant containers, pipes and coatings.
2. Dye and pigment production:
Dye intermediates: Terephthaloyl chloride is used to synthesize a variety of dyes and pigments. It can react with amine compounds to produce various phthalamide dyes.
3. Polyester film and bottle manufacturing: In the production process of polyester (such as PET), terephthaloyl chloride is used as a key intermediate to make high-strength polyester film and bottles. These materials are widely used in food and beverage packaging, electronic displays and solar cell backplanes.
4. Engineering plastic synthesis: As a cross-linking agent or modifier for engineering plastics, terephthaloyl chloride can significantly improve the mechanical properties and heat resistance of plastics and is widely used in industries such as machinery, construction and consumer goods.
Storage conditions: Storage precautions Store in a cool, dry, well-ventilated warehouse. Keep away from fire and heat sources. The package must be sealed and not exposed to moisture. It should be stored separately from oxidants, alkalis, alcohols, etc. and should not be mixed. Equip with appropriate types and quantities of fire-fighting equipment. The storage area should be equipped with appropriate materials to contain leaks.
Packing: This product is packed in 25kg 100kg cardboard drums, and it can also be customized according to customers' requirements