3 4-epoxytetrahydrofuran (CAS # 285-69-8)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R10 - Flammable |
| Kev nyab xeeb piav qhia | S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S23 - Tsis txhob ua pa. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S36/37/38 - |
| UN IDs | Xyoo 1993 |
| HS Code | 29321900 ib |
| Kev Ceeb Toom | Irritant |
| Hazard Class | 3 |
| Packing Group | Ⅲ |
Taw qhia
3,4-Epoxytetrahydrofuran yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm cov khoom sib xyaw no:
Khoom: 3,4-Epoxytetrahydrofuran yog cov kua tsis muaj xim nrog cov ntxhiab tsw ntawm phenols. Nws yog flammable thiab tuaj yeem tsim tawg sib xyaw nrog huab cua. Lub compound yog dej-soluble thiab ruaj khov nyob rau hauv acidic tej yam kev mob.
Siv: 3,4-Epoxytetrahydrofuran yog dav siv nyob rau hauv ntau yam tshuaj nyob rau hauv cov organic synthesis thiab tshuaj lom neeg kev lag luam. Nws tuaj yeem siv ua kuab tshuaj, catalyst thiab nruab nrab.
Txoj kev npaj: 3,4-epoxytetrahydrofuran feem ntau yog ua los ntawm cov tshuaj tiv thaiv epoxidation. Ib txoj hauv kev zoo tshaj plaws yog ua kom muaj zog tetrachloride nrog tetrahydrofuran los tsim epoxide. Cov tshuaj tiv thaiv feem ntau tshwm sim nyob rau hauv chav tsev kub thiab yuav tsum tau ntxiv cov acidic catalyst los pab txhawb cov tshuaj tiv thaiv.
Nws yog ib qho khoom siv hluav taws xob thiab yuav tsum tau zam los ntawm kev sib cuag nrog cov nplaim taws qhib thiab qhov kub thiab txias. Tsis txhob nqus pa los yog sib cuag nrog daim tawv nqaij thiab qhov muag thaum ua haujlwm. Nws yuav tsum tau ua nyob rau hauv qhov chaw uas muaj cua zoo thiab cov khoom siv tiv thaiv tus kheej tsim nyog xws li hnab looj tes thiab cov looj tsom iav tiv thaiv yuav tsum hnav. Tsis tas li ntawd, nws yuav tsum tau muab cia rau hauv lub thawv airtight, kom deb ntawm qhov chaw kub thiab qhib nplaim taws. Nyob rau hauv qhov xwm txheej ntawm cov pa xau, nres tam sim ntawd thiab tsis txhob nkag mus rau hauv lub kav dej lossis hauv qab daus. Nyob rau hauv rooj plaub ntawm kev sib chwv los yog nqus tau pa, nrhiav kev kho mob tam sim ntawd.
