2-Bromo-5-nitropyridine (CAS# 4487-59-6)
| Likhoutu tsa Kotsi | R25 – E chefo ha e koetsoe R41 – Kotsi ya tshenyo e kgolo mahlong |
| Tlhaloso ea Tšireletseho | S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka. S39 - Apara ts'ireletso ea mahlo / sefahleho. S45 – Ha ho ka etsahala kotsi kapa ha o ikutlwa o sa phele hantle, batla keletso ya bongaka hanghang (bontsha leibole neng kapa neng ha ho kgoneha.) |
| Li-ID tsa UN | UN 2811 6.1 / PGIII |
| WGK Jeremane | 3 |
Selelekela
2-Bromo-5-nitropyridine ke motsoako oa tlhaho o nang le foromo ea lik'hemik'hale C5H3BrN2O2. E latelang ke tlhaloso ea sebopeho sa eona, ts'ebeliso, tokiso le tlhaiso-leseling ea polokeho:
Tlhaho:
2-Bromo-5-nitropyridine ke sekontiri se sesoeu se nang le tatso e nyane ea oxalic acid. E na le botsitso bo phahameng ba mocheso le lik'hemik'hale. E qhibiliha hanyane ka metsing ka mocheso oa kamore, e qhibiliha ka har'a lihlapolli tse kang ethanol le acetone.
Sebelisa:
2-Bromo-5-nitropyridine e na le mefuta e mengata ea lisebelisoa. Ke thepa ea bohlokoa e tala ebile e bohareng ba organic synthesis. E ka sebelisoa ha ho etsoa chefo e bolaeang likokonyana, dae, lisebelisoa tsa photosensitive le metsoako ea meriana. Ho phaella moo, e ka boela ea sebelisoa e le mohloli le ligand.
Mokhoa oa ho itokisa:
2-Bromo-5-nitropyridine synthesis mekhoa haholo-holo e latelang:
1. ka 2-bromopyridine le nitric acid reaction tlas'a maemo a acidic.
2. ka 3-bromopyridine le sodium nitrite karabelo tlas'a maemo a alkaline.
Lintlha tsa Tšireletseho:
2-Bromo-5-nitropyridine ke motsoako o chefo o nang le likotsi tse itseng. Ela hloko mehato e latelang ea tšireletso nakong ea tšebeliso le polokelo:
1. qoba ho hema lerōle kapa mouoane, e lokela ho ba sebakeng se nang le moea o motle oa ho sebetsa.
2. qoba ho kopana le letlalo, mahlo le lera la mucous, tse kang ho kopana lokela hang-hang rinse ka metsi a mangata, 'me batla thuso ea bongaka.
3. ela hloko mehato ea thibelo ea mollo le ho phatloha, qoba ho kopana le thepa e tukang.
4. Boloka ka sejaneng se tiisitsoeng, hole le mollo le oxidant.
5. Lahla ho latela melao ea lehae ho qoba ho tsoa ka kotloloho tikolohong.
Kakaretso:
2-Bromo-5-nitropyridine ke motsoako oa manyolo o nang le mefuta e mengata ea lisebelisoa. Leha ho le joalo, ka lebaka la chefo ea eona, hoa hlokahala ho ela hloko ts'ebetso e sireletsehileng, polokelo e nepahetseng le ho lahla thepa e setseng.
