3 4-Difluorobenzyl bromide (CAS # 85118-01-0)
| Risk Codes | R34 - Ua rau kub hnyiab R36/37 - Kab mob rau qhov muag thiab ua pa. R36 - Khau qhov muag |
| Kev nyab xeeb piav qhia | S23 - Tsis txhob ua pa. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S27 - Tshem tawm tag nrho cov khaub ncaws tsis huv tam sim ntawd. 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.) |
| UN IDs | UN 3265 8/PG 2 |
| WGK Germany | 3 |
| HS Code | 2 903990 |
| Kev Ceeb Toom | Corrosive / Lachrymatory |
| Hazard Class | 8 |
| Packing Group | III |
Taw qhia
3,4-Difluorobsyl bromide yog cov organic compound nrog cov tshuaj formula C7H5BrF2. Cov hauv qab no yog cov lus piav qhia ntawm nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Xwm:
- 3,4-Difluorobenzyl bromide yog cov kua tsis muaj xim.
-Nws muaj qhov ntom ntawm 1.78g / cm³ thiab qhov kub ntawm 216-218 degrees Celsius.
-Thaum chav tsev kub, nws tuaj yeem yaj hauv cov kuab tshuaj organic xws li ether thiab chloroform.
Siv:
- 3,4-Difluorobenzyl bromide feem ntau yog siv los ua reagent hauv cov organic synthesis. Nws tuaj yeem siv los ua ke cov organic sib txuas nrog cov qauv tshwj xeeb thiab cov khoom.
-Nws kuj tseem siv tau los ua ib qho nruab nrab hauv tshuaj thiab tshuaj tua kab.
Txoj Kev Npaj:
Kev npaj ntawm -3,4-Difluorobenzyl bromide tuaj yeem tau txais los ntawm reacting 3,4-difluorobenzaldehyde nrog sodium bromide nyob rau hauv qhov tsim nyog cov tshuaj tiv thaiv.
Cov ntaub ntawv kev nyab xeeb:
- 3,4-Difluorobenzyl bromide yuav tsum tau ua tib zoo saib xyuas kev nyab xeeb thaum khaws cia thiab tuav.
-Nws yuav tsum muab cia rau hauv lub thawv kaw, tsis txhob sib cuag nrog huab cua thiab noo noo.
- Hnav cov hnab looj tes thiab tsom iav uas tsim nyog thaum siv.
-Tsis txhob nqus, zom lossis kov daim tawv nqaij thaum ua haujlwm.
-Thaum pov tseg cov khoom pov tseg, nws yuav tsum tau tuav thiab pov tseg raws li cov kev cai hauv tebchaws thiab cheeb tsam.
Thov xyuas kom meej tias cov txheej txheem kev nyab xeeb cuam tshuam tau ua raws li nruj me ntsis thaum siv cov khoom sib xyaw no, thiab kev tiv thaiv tsim nyog tau ua raws li qhov xwm txheej tshwj xeeb. Yog tias koj muaj lus nug txog kev ua haujlwm ntxiv, thov sab laj nrog tus kws tshaj lij lossis cov lus qhia cuam tshuam ntawm cov organic chemistry laboratory.
