3-Bromo-2-fluoro-5-methylpyridine (CAS# 17282-01-8)
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 R37/38 – Ukucasula uhlelo lokuphefumula kanye nesikhumba. I-R22 – Iyingozi uma igwinywe |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36 – Gqoka izingubo ezifanele zokuzivikela. S39 – Gqoka ukuvikela iso / ubuso. |
| I-Hazard Class | I-IRRITANT |
3-Bromo-2-fluoro-5-methylpyridine (CAS# 17282-01-8) Isingeniso
iwuketshezi olungenambala ukuya kokuphuzi okuphaphathekile. Inephunga elimnandi ekamelweni lokushisa. Ukuminyana kwenhlanganisela kuphakeme, futhi iphuzu layo lokuncibilika kanye nephuzu lokubila liyakhula ngokwanda kokuqukethwe kwe-bromine.
Sebenzisa:
Isetshenziswa kakhulu njenge-reagent noma i-intermediate ku-organic synthesis. Ingasetshenziswa ekulungiseleleni imithi, izibulala-zinambuzane kanye nezinye izinhlanganisela eziphilayo. Ingasetshenziswa futhi njenge-reagent ocwaningweni nasezilabhorethri.
Indlela:
Indlela yokulungiselela iphilisi ngokuyinhloko ihlanganisa ukusabela okuyizinyathelo ezimbili. Okokuqala, i-bromomethylpyridine isabela nge-potassium fluoride ku-solvent ephilayo ukwethula i-athomu ye-fluorine. Inhlanganisela ye-bromofluoro ewumphumela ibe isifakwa kwi-halogen ehambisanayo ne-hydrogen peroxide noma amanye ama-oxidizing agents.
Ulwazi Lokuphepha:
Kuyinhlanganisela yezinto eziphilayo futhi kufanele iphathwe ngokucophelela. Ngesikhathi sokusetshenziswa noma ukulungiswa, izinyathelo zokuphepha ezifanele kufanele zithathwe, njengokugqoka amagilavu okuvikela amakhemikhali, izibuko kanye nemishini yokukhipha umoya ngaphandle kwelabhorethri. Gwema ukuthinta isikhumba namehlo, futhi ugweme umlilo. Lapho ugcina, gcina isitsha sivaliwe futhi usibeke endaweni epholile, eyomile. Uma ungeniswa noma uthinta isikhumba, funa usizo lwezokwelapha ngokushesha.
