2 5-dibromo-6-methylpyridine (CAS # 39919-65-8)
Kotsi le Polokeho
| Likhoutu tsa Kotsi | R20/21/22 – E kotsi ka ho hema, ho kopana le letlalo le ha e koetsoe. R36/37/38 – Ho tena mahlo, tsamaiso ya ho hema le letlalo. R41 – Kotsi ya tshenyo e kgolo mahlong R22 – E kotsi ha e kwetswe |
| Tlhaloso ea Tšireletseho | S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka. S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho. |
| Li-ID tsa UN | UN 2811 6.1/PG 3 |
| WGK Jeremane | 3 |
| Khoutu ea HS | 29333990 |
| Tsebiso ea Kotsi | E kotsi |
| Sehlopha sa Likotsi | TS'OALANG |
| Sehlopha sa ho paka | III |
2 5-dibromo-6-methylpyridine (CAS#39919-65-8) Selelekela
2,5-Dibromo-6-methylpyridine ke motsoako oa lintho tse phelang. Se latelang ke selelekela sa thepa ea eona, tšebeliso, mekhoa ea ho lokisa le tlhaiso-leseling ea polokeho:
Thepa:
Ponahalo: 2,5-Dibromo-6-methylpyridine ke 'mala o mosehla o se nang 'mala kapa o bobebe.
Sollubility: E qhibiliha ka har'a metsoako e meng ea tlhaho, joalo ka ethanol, ether le ester solvents.
Tšebeliso: E ka sebelisoa ho organic synthesis ho hlahisa lihlopha tsa methyl kapa e le reagent ea bromination.
Mokhoa oa ho itokisa:
Mokhoa oa ho itokisa oa 2,5-Dibromo-6-methylpyridine o ka etsoa ka mehato e latelang:
Qhala 2,6-dimethylpyridine ka joala, ketone kapa ester solvent.
Eketsa bromine kapa reagent ea bromination ho tharollo ea karabelo.
Karabelo e etsoa ka mocheso o loketseng, 'me nako ea karabelo hangata e telele.
Kamora ho fumana sehlahisoa, se ka ntšoa le ho hloekisoa ka mekhoa ea tlhoekiso ea distillation kapa crystallization.
Lintlha tsa polokeho:
2,5-Dibromo-6-methylpyridine e na le chefo ho isa tekanyong e itseng 'me e halefisa letlalo le mahlo. Ho kopana ka ho toba ho lokela ho qojoa. Nakong ea ts'ebetso, lisebelisoa tse loketseng tsa tšireletso li lokela ho apesoa, tse kang liatlana le likhalase. Tshebetso e lokela ho etsoa sebakeng se nang le moea o motle ho thibela ho hema likhase tse kotsi. Ha ho lahla litšila, ho lokela ho sebetsoa ho latela melao ea sebaka. Ha u sebelisa kapa u boloka 2,5-dibromo-6-methylpyridine, tlhokomelo e lokela ho nkoa ho qoba mollo le mocheso o phahameng.
