2 5-Dibromo-4-methylpyridine (CAS# 3430-26-0)
| Iikhowudi zoMngcipheko | R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. I-R41 – Umngcipheko womonakalo omkhulu emehlweni I-R37/38 – Iyacaphukisa inkqubo yokuphefumla kunye nolusu. I-R22 – Iyingozi xa iginyiwe |
| Inkcazelo yoKhuseleko | S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso. S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S39 –Nxiba ukhuseleko lwamehlo / ubuso. |
| WGK eJamani | 3 |
| Ikhowudi ye-HS | 29333999 |
| Inqaku Lengozi | Inobungozi |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
Intshayelelo
I-2,5-Dibromo-4-methylpyridine i-organic compound. Oku kulandelayo yintshayelelo eneenkcukacha kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwale khompawundi:
Umgangatho:
I-2,5-Dibromo-4-methylpyridine iqinile kunye neefom zekristale ezingenambala ukuya kwi-yellowish crystalline. Inonyibiliko olomeleleyo kwaye iyanyibilika kwizinyibilikisi ezininzi eziphilayo. Yikhompawundi engazinzanga ephuka lula ekukhanyeni kwelanga.
Sebenzisa:
Le khompawundi isoloko isetyenziswa njengento ekrwada kunye ne-reagent kwi-organic synthesis.
Indlela:
I-2,5-Dibromo-4-methylpyridine ilungiselelwe ngokukodwa ngokusabela kwe-brominated p-toluene kunye ne-pyridine. I-P-toluene iphendula kunye ne-cuprous bromide yenze i-2-bromotoluene, ethi emva koko idibane ne-pyridine phantsi kwe-asidi catalysis ukuvelisa imveliso yokugqibela.
Ulwazi ngoKhuseleko:
I-2,5-Dibromo-4-methylpyridine idinga ukuphathwa ngononophelo njengoko iyinto enobuthi. Ukunyamekela kufuneka kuthathwe ukuphepha ukudibanisa nolusu, amehlo, kunye nokuphefumula ngexesha lokusebenza. Izixhobo ezifanelekileyo zokuzikhusela ezifana neeglavu, iimpahla zamehlo ezikhuselayo, kunye neemaski ezikhuselayo kufuneka zinxitywe xa zisetyenziswa elabhoratri. Xa igcinwe kwaye iphathwa, kufuneka igcinwe kude nezinto ezinokutsha kunye ne-oxidizing agents. Ukuba loo nto iginywe okanye iphefumle ngempazamo, kufuneka kufunwe unyango ngokukhawuleza. Xa ulahla inkunkuma, imigaqo yendawo kufuneka ilandelwe kwaye inkunkuma kufuneka ilahlwe ngokufanelekileyo ukuphepha ukungcoliseka kwendalo.
