2 5-Dibromo-4-methylpyridine (CAS# 3430-26-0)
| Amakhodi Engozi | R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. R41 – Ingozi yokulimala okubi emehlweni R37/38 – Ukucasula uhlelo lokuphefumula kanye nesikhumba. I-R22 – Iyingozi uma igwinywe |
| Incazelo Yokuphepha | S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S39 – Gqoka ukuvikela iso / ubuso. |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29333999 |
| Inothi Lengozi | Kuyingozi |
| I-Hazard Class | I-IRRITANT |
Isingeniso
I-2,5-Dibromo-4-methylpyridine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso esiningiliziwe sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwale nhlanganisela:
Ikhwalithi:
I-2,5-Dibromo-4-methylpyridine iqinile enamafomu ekristalu angenambala ukuya kokuphuzi. Inokuncibilika okuqinile futhi iyancibilika ezincibilikisini eziningi eziphilayo. Kuyinhlanganisela engazinzile ephuka kalula ekukhanyeni kwelanga.
Sebenzisa:
Lesi sakhi sivame ukusetshenziswa njengempahla eluhlaza kanye ne-reagent ku-organic synthesis.
Indlela:
I-2,5-Dibromo-4-methylpyridine ilungiselelwe ngokuyinhloko ukusabela kwe-brominated p-toluene ne-pyridine. I-P-toluene ihlangana ne-cuprous bromide yakhe i-2-bromotoluene, ebese isabela ne-pyridine ngaphansi kwe-acid catalysis ukuze ikhiqize umkhiqizo wokugcina.
Ulwazi Lokuphepha:
I-2,5-Dibromo-4-methylpyridine idinga ukuphathwa ngokucophelela njengoba iyinhlanganisela enobuthi. Ukunakekela kufanele kuthathwe ukuze ugweme ukuthintana nesikhumba, amehlo, nokuphefumula ngesikhathi sokuhlinzwa. Izimpahla zokuzivikela ezifanele ezifana namagilavu, izingubo zamehlo ezivikelayo, namamaski okuzivikela kufanele kugqokwe lapho kusetshenziswa elabhorethri. Uma igcinwe futhi iphathwa, kufanele igcinwe kude nezinto ezivuthayo kanye nama-oxidizing agents. Uma into igwinywe noma ihogelwe ngephutha, kufanele ufune usizo lwezempilo ngokushesha. Lapho kulahlwa imfucuza, kufanele kulandelwe imithetho yendawo futhi imfucuza kufanele ilahlwe ngendlela efanele ukuze kugwenywe ukungcoliswa kwemvelo.
