1 3-Difluorobenzene (CAS # 372-18-9)
| Risk Codes | R11 - Cov nplaim hluav taws kub heev R20 - Ua phem los ntawm kev nqus pa R2017/11/20 - |
| Kev nyab xeeb piav qhia | S7 - Khaws lub thawv kaw kom nruj. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S29 - Tsis txhob muab tso rau hauv qhov dej. S33 - Siv cov kev tiv thaiv kev tiv thaiv zoo li qub. S7/9 - |
| UN IDs | UN 1993 3/PG 2 |
| WGK Germany | 1 |
| RTECS | CZ5652000 |
| HS Code | 2 903690 ib |
| Kev Ceeb Toom | Heev Flammable |
| Hazard Class | 3 |
| Packing Group | II |
Taw qhia
1,3-Difluorobenzene yog ib qho organic compound. Cov hauv qab no yog cov lus qhia ntxaws txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 1,3-difluorobenzene:
Zoo:
1,3-Difluorobenzene yog ib qho organofluorine compound uas muaj tshuaj lom neeg ruaj khov. Nws yog non-flammable tab sis reacts nrog muaj zog oxidizing neeg sawv cev. 1,3-Difluorobenzene yog soluble hauv cov organic solvents xws li ethanol, ether thiab chloroform, thiab insoluble hauv dej.
Siv:
1,3-difluorobenzene muaj qee yam kev siv nyiaj hauv cov organic synthesis. Nws tuaj yeem siv los ua cov tshuaj tiv thaiv reagent hauv cov organic synthesis, piv txwv li fluorinating reagent rau cov tshuaj tsw qab. 1,3-difluorobenzene kuj tuaj yeem siv rau hauv kev sib txuas ntawm cov khoom siv fluorescent, kev npaj cov khoom siv optoelectronic thiab lwm yam.
Txoj kev:
1,3-Difluorobenzene tuaj yeem npaj los ntawm fluorination ntawm benzene. Feem ntau siv txoj kev npaj yog hydrogen fluoride ua tus neeg sawv cev fluorinating lossis siv cov ferrous fluoride complexes rau cov tshuaj fluorination.
Cov ntaub ntawv kev nyab xeeb:
Kev ceev faj txog kev nyab xeeb hauv qab no yuav tsum tau ua thaum siv 1,3-difluorobenzene:
1.1,3-Difluorobenzene muaj qee yam toxicity, uas yuav ua rau muaj kev puas tsuaj rau ntawm daim tawv nqaij, nqus tau pa los yog kev sib tsoo. Cov cuab yeej tiv thaiv tus kheej tsim nyog xws li hnab looj tes, looj tsom iav, thiab lub ntsej muag yuav tsum hnav thaum siv.
2. Tsis txhob sib cuag nrog cov neeg muaj zog oxidizing kom tsis txhob muaj hluav taws kub los yog tawg.
3. Nws yuav tsum tau muab cia rau hauv qhov chaw qhuav, txias thiab zoo-ventilated, kom deb ntawm cov hluav taws kub thiab cov ntaub ntawv flammable.
5. Tsis txhob sib xyaw nrog lwm cov tshuaj thiab kom deb ntawm cov menyuam yaus thiab cov neeg uas tsis paub yuav ua li cas.
