4 4-Oxydiphthalic anhydride ODPA CAS 1823-59-2
Muaj cov khoom lag luam txaus, siab zoo thiab xa khoom sai. Ntau qhov ntau nrog luv nqi ntxiv.
Txhua yam kev xav tau, txais tos hu rau peb txhua lub sijhawm.
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Kev piav qhia
Khoom npe: 4,4′-Oxydiphthalic anhydride (ODPA)
CAS: 1823-59-2 Nr
MF: C16H6O7
PIB: 310.21
IB: 412-830-4
Melting point: 225-229 ° C (lit.)
Kub taw tes: 410.39 ° C (kwv yees ntxhib)
Qhov ceev: 1.4942 (nruab nrab kwv yees)
Refractive Index: 1.6380 (kwv yees)
Specification
| Khoom npe | ODPA |
| Qhov tshwm sim | Dawb hmoov |
| Purity | ≥99% |
| MW | 310.21 Nws |
| Melting point | 225-229 ° C (lit.) |
Daim ntawv thov
4,4′-oxydiphthalic anhydridesiv rau kev npaj cov khoom siv polyimide.
Cia tej yam kev mob
Khaws lub thawv ntim khoom ntim thiab khaws cia rau hauv qhov chaw txias thiab qhuav, thiab xyuas kom meej tias muaj qhov cua zoo lossis tso pa tawm hauv chaw ua haujlwm
Kev ruaj ntseg
Yog siv thiab khaws cia raws li kev qhia tshwj xeeb, nws yuav tsis decompose. Tsis muaj kev paub txog kev phom sij. Tsis txhob oxides.
Post lub sij hawm: Aug-02-2022