2 5-Difluorobromobenzene (CAS # 399-94-0)
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S2637/39 - S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag |
| UN IDs | TIAB SA 2922 |
| WGK Germany | 3 |
| HS Code | 2 903990 |
| Kev Ceeb Toom | Flamable |
| Hazard Class | IRRITANT, FLAMMABLE |
Taw qhia
2,5-Difluorobromobenzene yog ib qho organic compound. Cov hauv qab no yog cov lus qhia ntxaws txog nws cov khoom, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
2,5-Difluorobromobenzene yog cov kua tsis muaj xim uas muaj ntxhiab tsw. Nws tsis zoo soluble hauv dej tab sis soluble hauv cov kuab tshuaj organic xws li cawv, ethers, thiab ketones.
Siv:
2,5-Difluorobromobenzene feem ntau yog siv los ua ib qho tseem ceeb nruab nrab ntawm cov organic synthesis. Nws kuj tuaj yeem siv los ua ligand rau organometallic catalysts thiab siv rau hauv kev hloov pauv, kev sib txuas lus, thiab lwm yam hauv cov organic synthesis.
Txoj kev:
Txoj kev npaj ntawm 2,5-difluorobromobenzene yog complex thiab feem ntau yog synthesized los ntawm cov nram qab no tshuaj:
Nyob rau hauv lub xub ntiag ntawm bromobenzene, cuprous bromide thiab difluoromethanesulfonamide reacted nyob rau hauv lub xub ntiag ntawm bromobenzene los tsim 2,5-difluorobromobenzene.
Phenylmagnesium bromide yog reacted nrog cuprous fluoride los tsim 2,5-diphenyldifluoroethane, uas yog ces raug rau bromination thiab iodination cov tshuaj tiv thaiv kom tau 2,5-difluorobromobenzene.
Cov ntaub ntawv kev nyab xeeb:
2,5-Difluorobromobenzene ua rau khaus thiab tuaj yeem ua rau tsis xis nyob los ntawm kev nqus pa, tiv thaiv daim tawv nqaij, lossis qhov muag. Yuav tsum tsis txhob cuam tshuam ncaj qha rau ntawm daim tawv nqaij thiab qhov muag thaum sib cuag, thiab cov cuab yeej tiv thaiv tus kheej xws li hnab looj tes tiv thaiv thiab tsom iav yuav tsum hnav yog tias tsim nyog. Hauv kev npaj thiab siv, yuav tsum tau them nyiaj rau kev tiv thaiv hluav taws thiab tawg, thiab xyuas kom muaj qhov cua zoo. Thaum siv thiab khaws cia, 2,5-difluorobromobenzene yuav tsum tau khaws cia ntawm qhov kub thiab txias thiab nyob rau hauv lub thawv kaw, kom deb ntawm qhov hluav taws kub, cua sov thiab oxidants.
