4 4 4-Oxydiphalic anhydride Odpa Cas 1823-59-2
Muaj txaus Tshuag, zoo siab thiab sai dua xa khoom. Ntau kom muaj nuj nqis nrog ntau luv nqi.
Yuav tsum muaj ib qho tseev kom muaj, txais tos hu rau peb txhua lub sijhawm.
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Kev piav txog
Khoom npe: 4,4'-oxydiphthhalic anhydride (OMPA)
CAS: 1823-59-2
Mf: c16h6o7
MW: 310.21
Einecs: 412-830-4
Melting Taw tes: 225-229 ° C (Lit.)
BLAIL NTAM: 410.39 ° C (ntxhib kwv yees)
Ceev: 1.4942 (ntxhib kwv yees)
Cov ntsiab lus tsis pub: 1.6380 (kwv yees)
Kev qhia tshwj xeeb
| Khoom npe | Odpa |
| Kev tshwm sim | Cov hmoov dawb |
| Kev coj dawb huv | ≥99% |
| MW | 310.21 |
| Melting taw tes | 225-229 ° C (Lit.) |
Daim ntawv thov
4,4'-oxydiphthhalic anhydridesiv rau kev npaj ntawm cov khoom siv polyimide.
Kev Cia
Khaws lub receptacle ntim thiab khaws cia rau hauv qhov chaw txias thiab ntshiab, thiab xyuas kom meej tias muaj qhov cua zoo lossis tso pa tawm hauv chaw ua haujlwm
Ruaj khov
Yog tias siv thiab khaws cia raws li cov lus qhia tshwj xeeb, nws yuav tsis decompose. Tsis muaj kev paub txog kev teeb meem. Zam kev oxides.
Lub sij hawm Post: Lub Yim Hli 02-2022