3 4-epoxytetrahydrofuran (CAS# 285-69-8)
| Iimpawu ezinobungozi | Xi – Irritant |
| Iikhowudi zoMngcipheko | R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R10-Inokutsha |
| Inkcazelo yoKhuseleko | S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso. S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S23 – Musa ukuphefumla umphunga. S16 – Gcina kude kwimithombo yomlilo. S36/37/38 - |
| Izazisi ze-UN | 1993 |
| Ikhowudi ye-HS | 29321900 |
| Inqaku Lengozi | Iyacaphukisa |
| IKlasi yeeNgozi | 3 |
| Iqela lokuPakisha | Ⅲ |
Intshayelelo
I-3,4-Epoxytetrahydrofuran yi-organic compound. Oku kulandelayo sintshayelelo kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwale khompawundi:
Iipropati: I-3,4-Epoxytetrahydrofuran ilulwelo olungenambala kunye nevumba le-phenols. Iyatsha kwaye inokwenza imixube eqhumayo ngomoya. Ikhompawundi i-soluble yamanzi kwaye izinzile phantsi kweemeko ze-acidic.
Ukusetyenziswa: I-3,4-Epoxytetrahydrofuran isetyenziswa ngokubanzi kwiimpendulo ezininzi kwi-organic synthesis kunye neshishini lemichiza. Ingasetyenziselwa njenge-solvent, i-catalyst kunye nephakathi.
Indlela yokulungiselela: I-3,4-epoxytetrahydrofuran isoloko idityaniswe yi-epoxidation reaction. Indlela eqhelekileyo kukusabela i-stannous tetrachloride kunye ne-tetrahydrofuran ukuvelisa i-epoxide. Ukusabela ngokuqhelekileyo kwenzeka kwiqondo lokushisa kwaye kufuna ukongezwa kwe-acidic catalyst ukuququzelela ukusabela.
Yinto enokutsha kwaye kufuneka igwenywe ekudibaneni nomlilo ovulekileyo kunye nokushisa okuphezulu. Kuphephe ukuphefumla iigesi okanye ukudibana nolusu namehlo ngexesha lokusebenza. Kufuneka isetyenziswe kwindawo enomoya owaneleyo kwaye izixhobo ezifanelekileyo zokuzikhusela ezifana neeglavu kunye nempahla yamehlo ekhuselayo kufuneka inxitywe. Ukongeza, kufuneka igcinwe kwisitya esingangeni moya, kude nemithombo yobushushu kunye namadangatye avulekileyo. Xa kukho ukuvuza, yimise ngoko nangoko kwaye uphephe ukungena kumjelo ophantsi komhlaba ohambisa amanzi amdaka. Kwimeko yokudibana okanye ukuphefumla ngempazamo, funa unyango ngokukhawuleza.
