Isophthalic acid CAS 121-91-5
Isophthalic acid yog cov xim tsis muaj xim crystallized los ntawm dej los yog ethanol. Me ntsis soluble nyob rau hauv dej, insoluble nyob rau hauv benzene, toluene thiab petroleum ether, soluble nyob rau hauv methanol, ethanol, acetone thiab glacial acetic acid. Isophthalic acid muaj qee qhov kev pheej hmoo, nrog cov hmoov lossis cov khoom sib xyaw nrog huab cua, cov plua plav tawg tuaj yeem tshwm sim.
| Yam khoom | Specification |
| Melting point | 341-343 ° C (lit.) |
| Boiling point | 214.32°C (kev kwv yees kwv yees) |
| Qhov ntom | 1,54 g / cm3 |
| Vapor siab | 0Pa ntawm 25 ℃ |
| Refractive Index | 1.5100 (kwv yees) |
| pKa | 3.54 (ntawm 25 ℃) |
| Dej solubility | 0.01 g / 100 mL (25 ºC) yog ' |
Isophthalic acid yog tsuas yog siv nyob rau hauv zus tau tej cov unsaturated polyester cob, PET copolymer ntoo ntiv tes thiab alkyd resin. Tsis tas li ntawd, isophthalic acid li raw khoom kuj siv tau los npaj polyisophthalic acid allyl ester (DAIP) resin, uas yog dav siv nyob rau hauv kev tsim cov precision thiab complex high-temperature insulating qhov chaw thiab impregnated laminates. Kev npaj ntawm diethyl isophthalate (DEIP) raws li ib tug tshwj xeeb Chemicalbook hnyav nyob rau hauv zus tau tej cov toluene diisocyanate; Kev npaj ntawm polybenzimidazole siv los ua ib qho nplaum rau aluminium alloy, stainless hlau thiab lwm yam ntaub ntawv hlau, hlau honeycomb qauv, polyimide zaj duab xis, silicon wafer thiab lwm yam ntaub ntawv; Diisooctyl isophthalate, cov roj tsis muaj xim ua kua yas uas muaj kev sib raug zoo nrog PVC, nitrocellulose, polystyrene thiab lwm yam resins, tau npaj.
25kg / nruas los yog raws li tus neeg yuav tsum tau muaj.
Isophthalic acid CAS 121-91-5
Isophthalic acid CAS 121-91-5
