4 4′-(Hexafluoroisopropylidene)diphthalic acid（CAS# 3016-76-0)
| 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. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S36 – Wear suitable protective clothing. |
Introduction
4,4′-(2,2,2-trifluoro-1-trifluoromethyl)ethylenebis(1,2-benzenedicarboxylic acid) is an organic compound. It is a white crystalline powder with high thermal stability and weather resistance.
The compound can be used to prepare high-performance polyester materials with high oxidation resistance and heat resistance, and has a wide range of applications. It can be used as a modifier to improve the properties of polyester materials, such as ductility, strength, and weather resistance. It can also be used as a photosensitizer and an additive for polymerization catalysts.
The preparation method of 4,4′-(2,2,2-trifluoro-1-trifluoromethyl)ethylenebis(1,2-benzenedicarboxylic acid) is complex and needs to be obtained through multi-step reaction. A commonly used method is to react phthalic acid with methylene trifluoride under alkaline conditions to give 4,4′-(2,2,2-trifluoro-1-trifluoromethyl)ethylenebis(1,2-benzenedicarboxylic acid).
Safety information: Appropriate handling methods and precautions should be taken during the preparation and application of this compound. It has certain toxicity and irritation, and should be avoided from inhaling dust and coming into contact with the skin, eyes, etc. Wear protective gloves, masks, and goggles to ensure good ventilation during operation.
