2 5-dibromo-6-methylpyridine (CAS# 39919-65-8)
Ubungozi Nokuphepha
| Amakhodi Engozi | R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. R41 – Ingozi yokulimala okubi emehlweni I-R22 – Iyingozi uma igwinywe |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. |
| Ama-ID e-UN | UN 2811 6.1/PG 3 |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29333990 |
| Inothi Lengozi | Kuyingozi |
| I-Hazard Class | I-IRRITANT |
| Iqembu Lokupakisha | III |
2 5-dibromo-6-methylpyridine (CAS#39919-65-8) Isingeniso
I-2,5-Dibromo-6-methylpyridine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo zayo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha:
Izakhiwo:
Ukubukeka: I-2,5-Dibromo-6-methylpyridine iqinile eliphuzi elingenambala noma elikhanyayo.
Ukunyibilika: Kuyancibilika kwezinye izinyibilikisi zemvelo, njenge-ethanol, i-ether kanye nezincibilikisi ze-ester.
Ukusetshenziswa: Ingasetshenziswa ku-organic synthesis ukwethula amaqembu e-methyl noma njenge-reagent bromination.
Indlela yokulungiselela:
Indlela yokulungiselela i-2,5-Dibromo-6-methylpyridine ingenziwa ngezinyathelo ezilandelayo:
Chaza i-2,6-dimethylpyridine otshwaleni, i-ketone noma i-ester solvent.
Engeza i-bromine noma i-bromination reagent kwisisombululo sokusabela.
Ukusabela kwenziwa ezingeni lokushisa elifanele, futhi isikhathi sokusabela ngokuvamile siba side.
Ngemuva kokuthola umkhiqizo, ungakhishwa futhi uhlanzwe nge-distillation noma izindlela zokuhlanza i-crystallization.
Ulwazi lokuphepha:
I-2,5-Dibromo-6-methylpyridine inobuthi ngokwezinga elithile futhi icasula isikhumba namehlo. Ukuxhumana okuqondile kufanele kugwenywe. Ngesikhathi sokusebenza, izinto zokuzivikela ezifanele kufanele zigqokwe, njengamagilavu nezibuko. Ukusebenza kufanele kwenziwe endaweni enomoya omuhle ukuvimbela ukuhogela kwamagesi ayingozi. Lapho kulahlwa imfucuza, kufanele isingathwe ngokuhambisana nemithetho yendawo. Uma usebenzisa noma ugcina i-2,5-dibromo-6-methylpyridine, ukunakekelwa kufanele kuthathwe ukuze ugweme umlilo nokushisa okuphezulu.
