2-Chloro-4-fluorobenzyl bromide (CAS # 45767-66-6)
| Risk Codes | R34 - Ua rau kub hnyiab R22 - Ua phem yog tias nqos |
| Kev nyab xeeb piav qhia | 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.) 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. |
| UN IDs | ib 3265 |
| HS Code | 2 903990 |
| Kev Ceeb Toom | Corrosive / Lachrymatory |
| Hazard Class | 8 |
| Packing Group | III |
Taw qhia
2-Chloro-4-fluorobenzyl bromide yog cov organic compound nrog cov tshuaj formula C7H5BrClF. Nws yog xim tsis muaj xim lossis lub teeb daj oily kua ntawm chav tsev kub. Cov hauv qab no yog cov lus piav qhia ntawm qhov xwm txheej, kev siv, kev npaj thiab kev nyab xeeb ntawm 2-Chloro-4-fluorobenzyl bromide:
Xwm:
-Cov tsos mob: tsis muaj xim lossis lub teeb daj oily kua
-Solubility: me ntsis soluble hauv dej, soluble hauv organic solvents xws li ethanol thiab dichloromethane
- Melting point: -10 ° C
- Boiling Point: 112-114 ° C
Qhov ceev: 1.646 g / mL
Siv:
2-Chloro-4-fluorobenzyl bromide feem ntau yog siv los ua ib qho tseem ceeb nruab nrab thiab raw khoom hauv cov organic synthesis. Nws tuaj yeem siv rau hauv kev sib txuas ntawm lwm cov organic tebchaw, xws li heterocyclic compounds, tshuaj thiab dyes.
Txoj Kev Npaj:
2-Chloro-4-fluorobenzyl bromide tuaj yeem npaj los ntawm reacting 2-chloro-4-fluorobenzyl cawv nrog hydrogen bromide. Ua ntej, 2-chloro-4-fluorobenzyl cawv yog esterified nrog hydrogen bromide nyob rau hauv lub xub ntiag ntawm lub hauv paus los tsim 2-chloro-4-fluorobenzyl bromide. Tom qab ntawd, nws raug ntxuav los ntawm kev rho tawm nrog cov concentrated hydrochloric acid thiab distillation kom tau txais cov khoom lag luam 2-Chloro-4-fluorobenzyl bromide.
Cov ntaub ntawv kev nyab xeeb:
Yuav tsum tau ceev faj txog kev nyab xeeb hauv qab no thaum siv lossis tuav 2-Chloro-4-fluorobenzyl bromide:
-Tsis txhob sib cuag nrog daim tawv nqaij, qhov muag thiab cov mucous daim nyias nyias. Thaum sib cuag, yaug nrog dej kom ntau thiab nrhiav kev kho mob.
-Thaum ua haujlwm, siv cov cuab yeej tiv thaiv tsim nyog, xws li hnab looj tes tiv thaiv, tsom iav kev nyab xeeb thiab khaub ncaws tiv thaiv.
-Tsis txhob nqus nws cov vapors lossis hmoov av. Thaum lub sijhawm ua haujlwm, nws yuav tsum xyuas kom meej tias nws nyob hauv qhov chaw zoo-ventilated.
-Storage yuav tsum tau muab kaw kom tsis txhob sib cuag nrog oxidants thiab muaj zog acids / alkali.
