4-Oxydiphthalic anhydride ODPA CAS 1823-59-2
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Bayani
Sunan samfur: 4,4′-Oxydiphthalic anhydride (ODPA)
Saukewa: 1823-59-2
Saukewa: C16H6O7
MW: 310.21
Saukewa: 412-830-4
Matsayin narkewa: 225-229 ° C (lit.)
Matsayin tafasa: 410.39 ° C (ƙididdigar ƙima)
Maɗaukaki: 1.4942 (ƙididdigar ƙima)
Fihirisar magana: 1.6380 (kimanta)
Ƙayyadaddun bayanai
| Sunan samfur | ODPA |
| Bayyanar | Farin foda |
| Tsafta | ≥99% |
| MW | 310.21 |
| Wurin narkewa | 225-229 ° C (lit.) |
Aikace-aikace
4,4'-oxydiphthalic anhydrideza a yi amfani da shi don shirya kayan abu na polyimide.
Yanayin ajiya
A ajiye rumbun a rufe kuma a adana shi a wuri mai sanyi da bushewa, kuma a tabbatar da cewa akwai na'urar iskar shaka mai kyau a wurin aiki.
Kwanciyar hankali
Idan aka yi amfani da shi kuma an adana shi daidai da ƙayyadaddun bayanai, ba zai ruɓe ba. Babu sanannun halayen haɗari. Guji oxides.
Lokacin aikawa: Agusta-02-2022