2-Bromo-5-nitropyridine (CAS# 4487-59-6)
| Iikhowudi zoMngcipheko | I-R25 – Inetyhefu xa iginyiwe I-R41 – Umngcipheko womonakalo omkhulu emehlweni |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S39 –Nxiba ukhuseleko lwamehlo / ubuso. S45 - Kwimeko yengozi okanye ukuba uziva ungaphilanga, funa iingcebiso zonyango ngokukhawuleza (bonisa ileyibhile nanini na kunokwenzeka.) |
| Izazisi ze-UN | UN 2811 6.1 / PGIII |
| WGK eJamani | 3 |
Intshayelelo
I-2-Bromo-5-nitropyridine i-organic compound kunye ne-chemical formula C5H3BrN2O2. Oku kulandelayo yinkcazo yobume bayo, ukusetyenziswa, ukulungiswa kunye nolwazi lokhuseleko:
Indalo:
I-2-Bromo-5-nitropyridine yinto eqinileyo emhlophe kunye nencasa encinci ye-oxalic acid. Unozinzo oluphezulu lwe-thermal kunye neekhemikhali. Inyibilika kancinci emanzini kwiqondo lobushushu begumbi, inyibilika kwizinyibilikisi eziphilayo ezifana ne-ethanol kunye ne-acetone.
Sebenzisa:
I-2-Bromo-5-nitropyridine inoluhlu olubanzi lwezicelo. Yimathiriyeli ekrwada ebalulekileyo kwaye iphakathi kwi-organic synthesis. Ingasetyenziswa kwi-synthesis ye-pesticides, idayi, izinto ze-photosensitive kunye ne-pharmaceutical compounds. Ukongeza, inokusetyenziswa njenge-catalyst kunye ne-ligand.
Indlela yokulungiselela:
Iindlela ze-2-Bromo-5-nitropyridine synthesis ikakhulu zezi zilandelayo:
1. nge-2-bromopyridine kunye ne-nitric acid reaction phantsi kweemeko ze-acidic.
2. nge-3-bromopyridine kunye ne-sodium nitrite reaction phantsi kweemeko ze-alkali.
Ulwazi ngoKhuseleko:
I-2-Bromo-5-nitropyridine yityhefu enetyhefu enobungozi obuthile. Nika ingqalelo kula manyathelo okhuseleko alandelayo ngexesha lokusetyenziswa kunye nokugcinwa:
1. kuphephe ukuphefumla uthuli okanye umphunga, kufuneka ube kwindawo enempepho esebenza kakuhle.
2. kuphephe ukudibana nolusu, amehlo kunye nolwelwesi lwamafinyila, njengokudibana kufuneka ngokukhawuleza uhlambe ngamanzi amaninzi, kwaye ufune uncedo lwezonyango.
3. nikela ingqalelo kumanyathelo okuthintela umlilo kunye nokuqhuma, ugweme ukudibanisa nezinto ezinokutsha.
4. Gcina kwisitya esivaliweyo, kude nomlilo kunye ne-oxidant.
5. Ukulahla ngokwemigaqo yendawo ukuphepha ukukhutshwa ngokuthe ngqo kokusingqongileyo.
Isishwankathelo:
I-2-Bromo-5-nitropyridine i-organic compound kunye nezicelo ezininzi. Nangona kunjalo, ngenxa yobutyhefu bayo, kuyimfuneko ukubeka ingqalelo ekusebenzeni okukhuselekileyo, ukugcinwa ngokufanelekileyo kunye nokulahlwa kwezinto eziseleyo.
