Tetrachlorophthalic Anhydride (CAS 117-08-8) Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Tetrachlorophthalic Anhydride (TCPA) is a halogenated organic compound with the CAS registry number 117-08-8. It is widely recognized for its role as a flame retardant and intermediate in specialty chemical synthesis.
Key Parameters
| Parameter | Value |
|---|---|
| Chemical Formula | C8Cl4O3 |
| Molecular Weight | 285.90 g/mol |
| Purity | ≥98.0% |
| Melting Point | 253–257°C |
| Density | 1.49 g/cm3 |
| Solubility | Soluble in alcohols, ethers, and acids; low water solubility (0.8 mg/L at 21°C) |
2. Applications & Industrial Uses
2.1 Flame Retardant
TCPA is integrated into polyesters and epoxy resins to enhance fire resistance without compromising mechanical properties.
2.2 Chemical Intermediate
Used in synthesizing:
- Dyes & Pigments: Key intermediate for phthalocyanine green pigments and xanthene dyes.
- Plasticizers: Modifies polymer flexibility in PVC and related materials.
- Alkyd Resins: Improves durability and drying time in coatings.
2.3 Specialty Coatings
Incorporated into fire-resistant paints and industrial coatings for electrical components.
3. Operational Case Studies
3.1 Flame-Retardant Epoxy for Electronics
A manufacturer achieved UL94 V-0 certification by adding 15% TCPA to epoxy encapsulants, reducing flammability in circuit boards.
3.2 High-Performance Pigment Synthesis
A dye producer utilized TCPA to develop stable phthalocyanine green pigments for automotive coatings, enhancing UV resistance.
4. Client Success Stories
4.1 Polymer Solutions Inc.
Integrated TCPA into nylon composites for aerospace applications, achieving a 40% reduction in peak heat release rate (ASTM E1354).
4.2 ChemCoat Ltd.
Developed a TCPA-based intumescent coating for steel structures, extending fire resistance to 120 minutes (ASTM E119).
5. Technical & Commercial Inquiry
For product specifications, SDS, or bulk pricing:
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