4 4-Oxydiphthalic anhydride ODPA CAS 1823-59-2
Waxaa jira kayd ku filan, tayo sare leh iyo gaarsiin degdeg ah. Tiro badan oo qiimo dhimis badan leh.
Wixii shuruud ah, ku soo dhawoow inaad nala soo xidhiidho wakhti kasta.
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Sharaxaada
Magaca Alaabta: 4,4′-Oxydiphthalic anhydride (ODPA)
CAS: 1823-59-2
MF: C16H6O7
MW: 310.21
EINECS: 412-830-4
Meesha dhalaalka: 225-229 °C (iftiin)
Barta karkarinta: 410.39°C (qiyaasta qallafsan)
Cufnaanta: 1.4942 (qiyaas adag)
Tusmada dib-u-celinta: 1.6380 (qiyaas)
Tilmaamid
| Magaca alaabta | ODPA |
| Muuqashada | budo cad |
| daahirnimo | ≥99% |
| MW | 310.21 |
| barta dhalaalaysa | 225-229 °C ( shidan) |
Codsiga
4,4′-oxydiphthalic anhydrideloo isticmaalo diyaarinta walxaha polyimide.
Xaaladaha kaydinta
Kaydka ha xidho oo ku kaydi meel qabow oo engegan, oo hubi inay jirto hawo ama qalab qiiq wanaagsan oo goobta shaqada ah.
Xasilooni
Haddii loo isticmaalo oo loo kaydiyo si waafaqsan tilmaamaha, ma qudhmi doono. Ma jiraan falcelino khatar ah oo la yaqaan. Iska ilaali oksaydhyada.
Waqtiga boostada: Agoosto-02-2022