3 4-epoxytetrahydrofuran (CAS# 285-69-8)
| Zizindikiro Zowopsa | Xi - Zosangalatsa |
| Zizindikiro Zowopsa | R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. R10 - Yoyaka |
| Kufotokozera Zachitetezo | S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso. S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S23 - Osapuma mpweya. S16 - Khalani kutali ndi magwero oyatsira. S36/37/38 - |
| Ma ID a UN | 1993 |
| HS kodi | 29321900 |
| Zowopsa | Zokwiyitsa |
| Kalasi Yowopsa | 3 |
| Packing Group | Ⅲ |
Mawu Oyamba
3,4-Epoxytetrahydrofuran ndi organic pawiri. Zotsatirazi ndizofotokozera za katundu, ntchito, njira zokonzekera ndi chidziwitso cha chitetezo cha gululi:
Properties: 3,4-Epoxytetrahydrofuran ndi madzi opanda mtundu ndi fungo la phenols. Imatha kuyaka ndipo imatha kupanga zosakaniza zophulika ndi mpweya. Pawiriyi ndi yosungunuka m'madzi komanso yokhazikika pansi pa acidic.
Ntchito: 3,4-Epoxytetrahydrofuran chimagwiritsidwa ntchito mu zochita zambiri mu kaphatikizidwe organic ndi makampani mankhwala. Itha kugwiritsidwa ntchito ngati zosungunulira, chothandizira komanso chapakatikati.
Kukonzekera njira: 3,4-epoxytetrahydrofuran nthawi zambiri apanga ndi epoxidation anachita. Njira yodziwika bwino ndikuyankhira stannous tetrachloride ndi tetrahydrofuran kupanga epoxide. Zomwe zimachitika nthawi zambiri zimachitika kutentha kwa chipinda ndipo zimafunikira kuwonjezera kwa acidic catalyst kuti zitheke.
Ndi chinthu choyaka moto ndipo chiyenera kupeŵa kukhudzana ndi moto wotseguka komanso kutentha kwambiri. Pewani kutulutsa mpweya kapena kukhudzana ndi khungu ndi maso mukamagwira ntchito. Iyenera kugwiritsidwa ntchito pamalo olowera mpweya wabwino ndipo zida zoyenera zodzitetezera monga magolovesi ndi zovala zodzitchinjiriza ziyenera kuvala. Kuphatikiza apo, iyenera kusungidwa mu chidebe chopanda mpweya, kutali ndi magwero a kutentha ndi malawi otseguka. Kukatuluka kutayikira, kuyimitsani nthawi yomweyo ndipo pewani kulowa m'chimbudzi kapena pansi. Ngati mwakhudzana mwangozi kapena pokoka mpweya, pitani kuchipatala mwamsanga.
