2 5-dibromo-6-methylpyridine (CAS# 39919-65-8)
Umngcipheko kunye noKhuseleko
| Iikhowudi zoMngcipheko | I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R41 – Umngcipheko womonakalo omkhulu emehlweni I-R22 – Iyingozi xa iginyiwe |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso. |
| Izazisi ze-UN | UN 2811 6.1/PG 3 |
| WGK eJamani | 3 |
| Ikhowudi ye-HS | 29333990 |
| Inqaku Lengozi | Inobungozi |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
| Iqela lokuPakisha | III |
2 5-dibromo-6-methylpyridine (CAS#39919-65-8) Intshayelelo
I-2,5-Dibromo-6-methylpyridine i-organic compound. Oku kulandelayo sintshayelelo kwiipropati zayo, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko:
Iinkcazelo ngeempawu:
Ukubonakala: I-2,5-Dibromo-6-methylpyridine yinto eqinileyo engenambala okanye ekhanyayo ephuzi.
Ukunyibilika: Kunyibilika kwezinye izinyibilikisi eziphilayo, ezifana ne-ethanol, i-ether kunye ne-ester solvents.
Ukusetyenziswa: Ingasetyenziselwa kwi-organic synthesis ukwazisa amaqela e-methyl okanye njenge-reagent bromination.
Indlela yokulungiselela:
Indlela yokulungiselela i-2,5-Dibromo-6-methylpyridine inokuqhutywa ngamanyathelo alandelayo:
Dissolve i-2,6-dimethylpyridine kwi-alcohol, i-ketone okanye i-ester solvent.
Yongeza i-bromine okanye i-bromination reagent kwisisombululo sokusabela.
Ukusabela kuqhutyelwa kwiqondo lokushisa elifanelekileyo, kwaye ixesha lokuphendula lihlala lide.
Emva kokufumana imveliso, inokukhutshwa kwaye ihlanjululwe nge-distillation okanye iindlela zokucoca i-crystallization.
Ulwazi ngokhuseleko:
I-2,5-Dibromo-6-methylpyridine inetyhefu kumlinganiselo othile kwaye iyacaphukisa ulusu kunye namehlo. Uqhagamshelwano oluthe ngqo kufuneka luphetshwe. Ngexesha lokusebenza, izixhobo ezifanelekileyo zokukhusela kufuneka zinxitywe, ezinjengeeglavu kunye nezibuko. Ukusebenza kufuneka kuqhutywe kwindawo epholileyo ukuze kuthintelwe ukuphefumla iigesi eziyingozi. Xa ulahla inkunkuma, kufuneka iphathwe ngokuhambelana nemimiselo yendawo. Xa usebenzisa okanye ugcina i-2,5-dibromo-6-methylpyridine, kufuneka kuthathelwe ingqalelo ukuphepha umlilo kunye nokushisa okuphezulu.
