3 4-epoxytetrahydrofuran (CAS# 285-69-8)
| Hazard Symbols | Xi – Hasha |
| Risk Codes | R36/37/38 - Kushungurudza maziso, kufema system uye ganda. R10 - Inopfuta moto |
| Tsanangudzo Yekuchengetedza | S36/37/39 - Pfeka zvipfeko zvekudzivirira zvakakodzera, magurovhosi uye kudzivirira kweziso/chiso. S26 – Kana wasangana nemaziso, sukurudza nekukurumidza nemvura yakawanda uye tsvaga mazano ekurapwa. S23 - Usafeme mhute. S16 - Chengetedza kure nenzvimbo dzekudzima. S36/37/38 - |
| UN IDs | 1993 |
| HS Code | 29321900 |
| Hazard Note | Irritant |
| Hazard Kirasi | 3 |
| Packing Group | Ⅲ |
Nhanganyaya
3,4-Epoxytetrahydrofuran is an organic compound. Inotevera sumo yezvivakwa, mashandisirwo, nzira dzekugadzirira uye ruzivo rwekuchengetedza kwekomputa iyi:
Properties: 3,4-Epoxytetrahydrofuran imvura isina ruvara ine hwema hwe phenols. Inopfuta uye inogona kugadzira misanganiswa inoputika nemhepo. Mushonga wacho unonyungudika mumvura uye wakagadzikana pasi pemamiriro ane acidic.
Zvishandiso: 3,4-Epoxytetrahydrofuran inoshandiswa zvakanyanya mukuita kwakawanda muorganic synthesis uye indasitiri yemakemikari. Inogona kushandiswa se solvent, catalyst uye yepakati.
Kugadzirira nzira: 3,4-epoxytetrahydrofuran inowanzogadzirwa ne epoxidation reaction. Nzira yakajairika ndeyekuita stannous tetrachloride ine tetrahydrofuran kugadzira epoxide. Maitikiro acho anowanzo kuitika pakupisa kwekamuri uye anoda kuwedzerwa kweacidic catalyst kufambisa kuita.
Icho chinhu chinopisa uye chinofanira kudzivirirwa kubva pakusangana nemoto wakazaruka uye kupisa kwakanyanya. Dzivisa kufema magasi kana kubata neganda nemaziso panguva yekushanda. Inofanirwa kushandirwa munzvimbo ine mhepo inofefetera uye yakakodzera midziyo yekudzivirira senge magurovhosi uye maziso ekudzivirira anofanira kupfekwa. Mukuwedzera, inoda kuchengetwa mumudziyo usina mhepo, kure nezvinopisa uye moto wakazaruka. Kana pakadonha, mira nekukasika uye dzivirira kupinda mugero retsvina kana pasi. Kana wasangana netsaona kana kufemerwa, tsvaga kurapwa nekukasika.
