Terephthaloyl Chloride CAS No. 100-20-9
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Category：Agrochemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Terephthaloyl Chloride
CAS No.: 100-20-9 | EC No.: 202-829-5
1. Chemical Identification
| Property | Specification |
|---|---|
| IUPAC Name | Benzene-1,4-dicarbonyl dichloride |
| Molecular Formula | C₈H₄Cl₂O₂ |
| Molecular Weight | 203.02 g/mol |
| Appearance | White to off-white flakes |
| Melting Point | 79-81°C |
| Boiling Point | 266°C |
| Density | 1.34 g/cm³ |
| pH | <0.5 (aqueous solution) |
Synonyms:
TPC, Terephthaloyl dichloride, 1,4-Benzenedicarbonyl chloride
2. Key Applications
Polymer Industry
- High-Performance Fibers:
✓ Aramid fibers (Kevlar®-type)
✓ Flame-retardant textiles
✓ Nylon reinforcement - Specialty Plastics:
✓ Heat-resistant polyamides
✓ Engineering thermoplastics
Chemical Synthesis
- Pharmaceutical Intermediates:
✓ UV absorber production
✓ Drug synthesis - Agrochemicals:
✓ Pesticide intermediate
Industrial Applications
- Dye and pigment manufacturing
- Crosslinking agent for resins
3. Product Advantages
✔ High Reactivity – Excellent diacyl chloride for polycondensation
✔ Thermal Stability – Suitable for high-temperature processing
✔ Fiber Reinforcement – Enhances mechanical properties
4. Physical & Chemical Properties
- Solubility:
- Reacts with water/alcohols
- Soluble in chlorinated solvents
- Moisture Sensitivity:
- Hydrolyzes rapidly in moist air
5. Handling & Storage
| Parameter | Requirement |
|---|---|
| Storage Temp | <25°C (under inert gas) |
| Packaging | 25kg moisture-proof drums |
| Shelf Life | 12 months |
| Special Notes | Handle under dry nitrogen |
6. Safety Information
Danger!
- H314: Causes severe skin burns and eye damage
- H335: May cause respiratory irritation
- H290: May be corrosive to metals
Protective Measures:
- P280: Wear acid-resistant gloves/face shield
- P303+P361+P353: Skin contact wash procedure
- P305+P351+P338: Eye contact rinse protocol
7. Quality Specifications
- Purity: ≥99% (GC)
- Acid Content: ≤0.5%
- Iron Content: ≤10 ppm
Disclaimer:
The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.
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