3-Bromo-2-methylpyridine (CAS# 38749-79-0)
| Iikhowudi zoMngcipheko | I-R22 – Iyingozi xa iginyiwe I-R37/38 – Iyacaphukisa inkqubo yokuphefumla kunye nolusu. I-R41 – Umngcipheko womonakalo omkhulu emehlweni R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36/39 - S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo. S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso. |
| WGK eJamani | 3 |
| Ikhowudi ye-HS | 29333990 |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
Intshayelelo
I-2-methyl-3-bromopyridine yi-organic compound. Oku kulandelayo sintshayelelo kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwekhompawundi:
Umgangatho:
I-2-Methyl-3-bromopyridine ilulwelo olungenambala kunye nevumba elimnandi elifana ne-pyridine.
Sebenzisa:
I-2-Methyl-3-bromopyridine isetyenziswa rhoqo njenge-reagent kwaye iphakathi kwi-organic synthesis.
Indlela:
Ngokuqhelekileyo, ukulungiswa kwe-2-methyl-3-bromopyridine kunokufezekiswa ngokuphendula kwe-bromination ye-pyridine. Indlela yokudibanisa esetyenziswa ngokuqhelekileyo kukusabela i-2-methylpyridine kunye ne-bromine kwi-solvent ye-organic efana ne-chloroform, isebenzisa i-sodium hydroxide njenge-catalyst.
Ulwazi ngoKhuseleko: Yityhefu enokubangela ukucaphuka kunye nomonakalo kwindlela yokuphefumla yomntu, ulusu kunye namehlo. Izixhobo ezifanelekileyo zokuzikhusela ezinjengeeglavu zekhemikhali, iindondo zamehlo, nempahla yokuzikhusela zimele zinxitywe xa zisetyenziswa yaye kuthintelwe ukudibana ngokuthe ngqo. Ngexesha lokugcinwa kunye nokuphatha, kuyimfuneko ukubeka ingqalelo kumlilo kunye nokukhanya, kwaye uqinisekise ukuba ugcinwe kude nomlilo kunye nemithombo yokushisa. Okubaluleke kakhulu, landela iinkqubo zokusebenza ezikhuselekileyo zeekhemikhali kwaye ulandele imimiselo efanelekileyo.
