4 4 4-Oxydiphalic anhydride OCPA 1823-59-2
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)
4,4'-oxydiphthhalic anhydride yuav siv rau kev npaj ntawm cov khoom siv polyimide.
1, t / t
2, l / c
3, vixaj
4, credit card
5, paypal
6, Alibaba Kev Tsim Kho Kev Lag Luam
7, Western Union
8, MoneyGram
9, ntxiv rau, qee zaum peb kuj lees txais Bitcoin.
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
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.
