Isophthalic acid/CAS:121-91-5
Description:
Isophthalic acid is an organic compound with the formula C6H4(CO2H)2. This colourless solid is an isomer of phthalic acid and terephthalic acid. These aromatic dicarboxylic acids are used as precursors (in form of acyl chlorides) to commercially important polymers, e.g. the fire-resistant material Nomex. Mixed with terephthalic acid, iso phthalic acid is used in the production of resins for drink bottles. The high-performance polymer poly benzimidazole is produced from iso phthalic acid.
Specification:
|
Item |
Specification |
| Melting point | 341-343 °C (lit.) |
| Boiling point | 214.32°C (rough estimate) |
| Density | 1.54 g/cm3 |
| Vapor pressure | 0Pa at 25℃ |
| Refractive Index | 1.5100(estimate) |
| Storage temp. | Sealed in dry,Room Temperature |
| Solubility | 0.12g/l |
| Form | Crystalline Powder |
| Color | White to off-white |
Usage
Isophthalic acid is used as an intermediate for high performance unsaturated polyesters, resins for coatings, high solids paints, gel coats and modifier of polyethylene terephthalate for bottles. It acts as precursors for the fire-resistant material nomex as well as used in the preparation of high-performance polymer polybenzimidazole. It is also employed as an input for the production of insulation materials.
Purified Isophthalic Acid (PIA) is mainly used as intermediate for high performance UPR, resins for coatings, high solids paints, gel coats, modifier of PET for bottles.
Packaging
25KG/Bag or as customer requirements.
Keep and storage
Shelf life:24 month from date of manufacture in original unopened packaging stored in a cool dry place out of direct sunlight, water.
Ventilated warehouse, Low temperature drying, Separated from oxidants, acids.









