1,4-Benzenedicarboxylic acid(CAS#100-21-0)
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| RTECS | WZ0875000 |
| TSCA | Yes |
| HS Code | 2917 36 00 |
| Toxicity | LD50 orally in Rabbit: > 6400 mg/kg |
Introduction
Sublimation without melting at about 300 ℃.
Application
1,4-Benzenedicarboxylic acid (terephthalic acid, PTA, CAS 100-21-0) is a high-purity dicarboxylic acid that serves as a fundamental monomer for the production of polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and other engineering polyesters. PET is widely used for beverage bottles, textile fibers, food packaging films, and industrial strapping. PBT provides excellent mechanical and electrical properties for automotive connectors, electronics housings, and appliance components. Terephthalic acid is also employed in the synthesis of unsaturated polyester resins (UPR) for fiberglass-reinforced composites, coatings, and adhesives. It functions as a curing agent for epoxy systems and as a chemical intermediate for plasticizers, flame retardants, and specialty polyamides. Its high thermal stability and purity ensure consistent performance in polymerization processes. Xinchem offers custom synthesis, custom chemical synthesis, and contract manufacturing of high-purity 1,4-benzenedicarboxylic acid with flexible scaling from R&D to commercial tons. Contact us today for a competitive quote and reliable global supply.
