2 5Difluorobenzylbromide (CAS# 85117-99-3)
| Amakhodi Engozi | I-R11 – Ivutha Kakhulu R34 – Ibangela ukusha I-R22 – Iyingozi uma igwinywe R36 – Ukucasuka emehlweni |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. S45 – Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.) S16 – Zigcine kude nemithombo yokuthungela. |
| Ama-ID e-UN | UN 2924 3/PG 2 |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29039990 |
| Inothi Lengozi | I-Corrosive/Lachrymatory |
| I-Hazard Class | 8 |
| Iqembu Lokupakisha | III |
Isingeniso
2,5-Difluorobenzyl bromide. Okulandelayo yisingeniso sobunjalo bayo, ukusetshenziswa, indlela yokulungiselela kanye nolwazi lokuphepha:
Ikhwalithi:
Ukubukeka: I-2,5-benzyl difluorobromide iwuketshezi olungenambala noma oluphuzi kancane.
Ukuminyana: 1.74-1.76 g/cm³.
I-Solubility: Incibilika kuzincibilikisi zemvelo ezifana notshwala, ama-ether nezincibilikisi ezingezona ze-polar.
Sebenzisa:
I-2,5-difluorobenzyl bromide isetshenziswa kakhulu njengenhlanganisela yempahla ephakathi nendawo eluhlaza ku-organic synthesis.
Ku-organic synthesis, ivamise ukusetshenziselwa ukugcwalisa ama-olefin kanye ne-fluorination ekhethiwe yezinhlanganisela ezinuka kamnandi.
Indlela:
Ukulungiswa kwe-2,5-difluorobenzyl bromide kungenziwa ngalezi zinyathelo ezilandelayo:
Okokuqala, i-2,5-dibromobenzyl ne-trifluoroacetic acid ziyasabela futhi zifakwe kabusha ku-condensate yegesi noma emanzini ukuze kulungiswe isisombululo se-2,5-difluorobenzylbromide.
Umkhiqizo ohlanzekile we-2,5-difluorobenzyl bromide ube usucwengwa, uhlungwe, bese womiswa.
Ulwazi Lokuphepha:
I-2,5-difluorobenzyl bromide inobuthi obuthile, futhi kufanele kuthathwe izinyathelo zokuphepha lapho uyisebenzisa, ukugwema ukuthintana nesikhumba, amehlo kanye nomgudu wokuphefumula.
Ngesikhathi sokusetshenziswa nokulungiswa, izinto zokuvikela ezifanele ezifana namagilavu aselabhorethri, izibuko, namamaski okuzivikela kufanele kuhlinzekwe.
Kufanele isetshenziswe endaweni enomoya omuhle futhi igweme ukuthintana nemithombo yokuthungela kanye nama-oxidants.
Lapho ugcina, i-2,5-difluorobenzyl bromide kufanele igcinwe endaweni epholile, eyomile futhi engenawo umoya, kude nomlilo nezinto ezivuthayo.
Sicela ulandele inkambiso efanele yaselabhorethri kanye nemihlahlandlela yokuphatha ephephile lapho usebenzisa futhi uphatha i-2,5-difluorobenzyl bromide.
