2 5Difluorobenzylbromide (CAS# 85117-99-3)
| Iikhowudi zoMngcipheko | I-R11 – Iyatsha kakhulu I-R34 – Ibangela ukutsha I-R22 – Iyingozi xa iginyiwe R36 – Iyandicaphukisa emehlweni |
| 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.) S16 – Gcina kude kwimithombo yomlilo. |
| Izazisi ze-UN | UN 2924 3/PG 2 |
| WGK eJamani | 3 |
| Ikhowudi ye-HS | 29039990 |
| Inqaku Lengozi | I-Corrosive/Lachrymatory |
| IKlasi yeeNgozi | 8 |
| Iqela lokuPakisha | III |
Intshayelelo
2,5-Difluorobenzyl bromide. Oku kulandelayo sintshayelelo kubume bayo, ukusetyenziswa, indlela yokulungiselela kunye nolwazi lokhuseleko:
Umgangatho:
Imbonakalo: I-2,5-benzyl difluorobromide lulwelo olungenambala okanye lutyheli kancinane.
Ubuninzi: 1.74-1.76 g/cm³.
Ukunyibilika: Inyibilika kwizinyibilikisi eziphilayo ezifana neealkoholi, ii-ether kunye nezinyibilikisi ezingezizo ipolar.
Sebenzisa:
I-2,5-difluorobenzyl bromide isetyenziswa kakhulu njenge-intermediate kunye ne-raw material compound kwi-organic synthesis.
Kwi-organic synthesis, iqhele ukusetyenziswa kwi-fluorination ye-olefins kunye ne-fluorination ekhethiweyo yeekhompawundi ezinuka kamnandi.
Indlela:
Ukulungiswa kwe-2,5-difluorobenzyl bromide kunokwenziwa ngala manyathelo alandelayo:
Okokuqala, i-2,5-dibromobenzyl kunye ne-trifluoroacetic acid ziphendulwa kwaye zixutywe kwi-condensate yegesi okanye amanzi ukulungiselela isisombululo se-2,5-difluorobenzylbromide.
Imveliso yebromide esulungekileyo eyi-2,5-difluorobenzyl ke ngoko ikhazimliswe, ihluzwe, yomiswe.
Ulwazi ngoKhuseleko:
I-2,5-difluorobenzyl bromide inetyhefu ethile, kwaye kufuneka kuthathwe amanyathelo okhuseleko xa uyisebenzisa, ukuphepha ukudibanisa nolusu, amehlo kunye nokuphefumula.
Ngexesha lokusetyenziswa kunye nokulungiswa, izixhobo ezifanelekileyo zokukhusela ezifana neeglavu zaselabhoratri, iiglasi, kunye neemaski zokukhusela kufuneka zinikezelwe.
Kufuneka iqhutywe kwindawo engena umoya kwaye ugweme ukudibanisa nemithombo yokutshisa kunye ne-oxidants.
Xa ugcina, i-2,5-difluorobenzyl bromide kufuneka igcinwe kwindawo epholileyo, eyomileyo nengenamoya, kude nomlilo kunye nezinto ezinokutsha.
Nceda ulandele uqheliselo olululo lwaselabhoratri kunye nezikhokelo zokuphatha ngokukhuselekileyo xa usebenzisa kunye nokuphatha i-2,5-difluorobenzyl bromide.
