2 4-Dibromopyridine (CAS# 58530-53-3)
| Iikhowudi zoMngcipheko | I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. 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. S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo. S37 – Nxiba iiglavu ezifanelekileyo. S22 – Musa ukuphefumla uthuli. |
| Izazisi ze-UN | 2811 |
| WGK eJamani | 1 |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
| Iqela lokuPakisha | Ⅲ |
Intshayelelo
I-2,4-i-Dibromopyridine yi-organic compound. Oku kulandelayo sintshayelelo kubume bayo, ukusetyenziswa, indlela yokulungiselela kunye nolwazi lokhuseleko:
Umgangatho:
- Imbonakalo: I-2,4-dibromopyridine yikristale engenambala okanye ukukhanya okuqinileyo kwekristale.
- I-Solubility: I-2,4-dibromopyridine i-soluble kwi-solvents ezininzi zezinto eziphilayo ezifana ne-ethanol, i-dimethyl sulfoxide kunye ne-chloroform.
Sebenzisa:
- Idayi: Yidayi esetyenziswa ngokuqhelekileyo ephakathi enokuthi isetyenziswe ukwenza iidayi ezinemibala eyahlukeneyo.
Indlela:
I-2,4-Dibromopyridine inokulungiswa ngezi ndlela zilandelayo:
- I-Catalyst bromination: Ngaphantsi kweemeko ze-alkaline, i-2,4-dibromopyridine inokufumaneka ngokuphendula i-pyridine kunye ne-brominating agent.
- I-Carbon-deuterium chiral halogenation reaction: I-2,4-dibromopyridine ifunyenwe ngokuphendula i-substrate nge-bromine.
Ulwazi ngoKhuseleko:
Ukhuseleko kunye nokusetyenziswa kwe-2,4-dibromopyridine kufuneka kuqwalaselwe ngokuhambelana nala manqaku alandelayo:
- Le khompawundi inetyhefu kwaye kufuneka iphathwe ngononophelo.
- Izixhobo ezifanelekileyo zokuzikhusela ezinje ngeeglavu, iiglasi, kunye nempahla yokukhusela kufuneka zinxitywe ngexesha lokuphatha nokusetyenziswa.
• Kuphephe ukuphefumla uthuli lwayo okanye ukudibana nolusu namehlo.
- Kufuneka iqhutywe kwindawo engena umoya kwaye uphephe ukudibana nomthombo womlilo ukuwuthintela ekubambeni umlilo okanye ukuqhuma.
- Iinkqubo ezifanelekileyo zokusebenza ezikhuselekileyo kufuneka zilandelwe ngexesha lokuphatha kunye nokugcinwa.
