4-Bromo-2-fluorobenzyl bromide (CAS # 76283-09-5)
| Hazard Cov Cim | C - Corrosive |
| Risk Codes | R22 - Ua phem yog tias nqos R34 - Ua rau kub hnyiab R52/53 - Ua phem rau cov kab mob hauv dej, tuaj yeem ua rau muaj kev cuam tshuam ntev rau hauv dej hiav txwv. R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. |
| 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. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S61 - Tsis txhob tso tawm rau ib puag ncig. Xa mus rau cov lus qhia tshwj xeeb / cov ntaub ntawv kev nyab xeeb. |
| UN IDs | UN 2923 8/PG 3 |
| WGK Germany | 2 |
| HS Code | 2 903990 |
| Kev Ceeb Toom | Corrosive / Lachrymatory |
| Hazard Class | 8 |
| Packing Group | III |
Taw qhia
2-Fluoro-4-bromobenzyl bromide yog cov organic compound. Cov hauv qab no yog kev qhia txog nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
Cov tsos mob: 2-Fluoro-4-bromobenzyl bromide yog cov kua tsis muaj xim rau daj ntseg daj.
- Solubility: Nws yog soluble hauv cov kuab tshuaj organic xws li cawv thiab ethers, tab sis insoluble hauv dej.
Siv:
- 2-Fluoro-4-bromobenzyl bromide feem ntau yog siv los ua ib qho tseem ceeb nruab nrab ntawm cov organic synthesis.
- Cov tshuaj no kuj tseem siv tau los ua raw khoom rau catalysts thiab surfactants.
Txoj kev:
Txoj kev npaj ntawm 2-fluoro-4-bromobenzyl bromide yog raws li nram no:
- Cov tshuaj tiv thaiv ntawm 2-bromobenzyl cawv nrog 2,4-difluorobenzoic acid, catalyzed los ntawm alkali, ntawm qhov tsim nyog kub thiab sijhawm.
- Tom qab cov tshuaj tiv thaiv tiav, kev ua kom huv thiab kev sib cais yog ua los ntawm crystallization los yog distillation kom tau 2-fluoro-4-bromobenzyl bromide nrog siab purity.
Cov ntaub ntawv kev nyab xeeb:
- 2-Fluoro-4-bromobenzyl bromide yog cov organic sib xyaw ua ke thiab nws cov vapors yuav tsum zam los ntawm kev nqus pa.
- Hnav cov cuab yeej tiv thaiv tus kheej tsim nyog xws li tsom iav tiv thaiv, hnab looj tes thiab cov tsho hauv lub cev thaum tuav thiab tuav.
- Thaum khaws cia thiab siv, tsis txhob sib cuag nrog oxidants, muaj zog acids, muaj zog alkalis thiab lwm yam khoom kom tsis txhob muaj kev phom sij txaus ntshai.
- Thaum khaws cia thiab pov tseg, yuav tsum tau ua raws li cov kev cai lij choj, cov cai thiab kev nyab xeeb.
