3-Chloro-4-fluorobenzyl bromide (CAS# 192702-01-5)
Umngcipheko kunye noKhuseleko
| Iikhowudi zoMngcipheko | I-R34 – Ibangela ukutsha R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R22 – Iyingozi xa iginyiwe |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36/37/39 – Nxiba iimpahla ezifanelekileyo zokukhusela, iiglavu kunye nokukhusela amehlo/ubuso. S45 - Kwimeko yengozi okanye ukuba uziva ungaphilanga, funa iingcebiso zonyango ngokukhawuleza (bonisa ileyibhile nanini na kunokwenzeka.) |
| Izazisi ze-UN | 3265 |
| Ikhowudi ye-HS | 29039990 |
| Inqaku Lengozi | I-Corrosive/Lachrymatory |
| IKlasi yeeNgozi | 8 |
| Iqela lokuPakisha | III |
3-Chloro-4-fluorobenzyl bromide (CAS# 192702-01-5) Intshayelelo
I-3-Chloro-4-fluorobenzyl bromide iqinile kunye nephunga elibonakalayo elifana ne-bromobenzene. Ineqondo lokunyibilika malunga ne-38-39 ° C. Kwaye indawo yokubilisa malunga ne-210-212 ° C. Kwiqondo lokushisa, liphantse lingabikho emanzini, kodwa liyi-soluble kwi-solvents ezininzi zezinto eziphilayo.
Sebenzisa:
I-3-Chloro-4-fluorobenzyl bromide inoluhlu olubanzi lwezicelo kwi-organic synthesis. Yinto ebalulekileyo ephakathi ukulungiselela ezinye iikhompawundi eziphilayo, ezifana neziyobisi, idayi kunye nezibulali-zinambuzane. Ikwasetyenziswa ekulungiseleleni iiretardants zomlilo, izinto ezithatha ifoto kunye ne-resin modifiers.
Indlela:
I-3-Chloro-4-fluorobenzyl bromide ifumaneka ngokubanzi ngokusabela i-bromobenzene nge-tert-butyl magnesium bromide. Okokuqala, i-tert-butylmagnesium bromide iphendulwa kunye ne-bromobenzene kwiqondo lokushisa eliphantsi ukufumana i-tert-butylphenylcarbinol. Emva koko, nge-chlorination kunye ne-fluorination, amaqela e-carbinol anokuguqulwa kwi-chlorine kunye ne-fluorine, kunye ne-3-Chloro-4-fluorobenzyl bromide yenziwe. Ekugqibeleni, imveliso ekujoliswe kuyo inokufumaneka ngokucocwa nge-distillation.
Ulwazi ngoKhuseleko:
Sebenzisa i-3-Chloro-4-fluorobenzyl bromide ngokuqwalasela ubuthi kunye nokucaphuka. Inokubangela ukucaphuka kwinkqubo yokuphefumla, ulusu kunye namehlo. Gwema ukudibana nolusu, amehlo kunye nomgudu wokuphefumula ngexesha lokusebenza. Nxiba izixhobo ezifanelekileyo zokukhusela, ezinjengeeglavu, iiglasi kunye nezikhuselo zobuso. Ukongeza, kufuneka igcinwe kwindawo enomoya kwaye ugweme ukunxibelelana nezinto ezinjenge-oxidants ezinamandla. Ukuba uginyiwe okanye urholile, funa unyango ngokukhawuleza. Nceda ufunde imiyalelo yokhuseleko lwemveliso ngononophelo ngaphambi kokusetyenziswa.
