2 4-Dibromopyridine (CAS# 58530-53-3)
| Amakhodi Engozi | R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. 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. S36 – Gqoka izingubo ezifanele zokuzivikela. S37 – Gqoka amagilavu afanelekile. S22 - Ungaphefumuli uthuli. |
| Ama-ID e-UN | 2811 |
| I-WGK Germany | 1 |
| I-Hazard Class | I-IRRITANT |
| Iqembu Lokupakisha | Ⅲ |
Isingeniso
I-2,4-Dibromopyridine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sobunjalo bayo, ukusetshenziswa, indlela yokulungiselela kanye nolwazi lokuphepha:
Ikhwalithi:
- Ukubukeka: I-2,4-dibromopyridine iyi-crystalline eqinile engenambala noma ephuzi ekhanyayo.
- Ukunyibilika: I-2,4-dibromopyridine iyancibilika kuzincibilikisi eziningi eziphilayo njenge-ethanol, i-dimethyl sulfoxide ne-chloroform.
Sebenzisa:
- Amadayi: Udayi osetshenziswa kakhulu ophakathi nendawo ongasetshenziswa ukuhlanganisa odayi abanemibala ehlukene.
Indlela:
I-2,4-Dibromopyridine ingalungiswa ngezindlela ezilandelayo:
- I-Catalyst bromination: Ngaphansi kwezimo ze-alkaline, i-2,4-dibromopyridine ingatholakala ngokuphendula i-pyridine nge-agent brominating.
- Ukusabela kwe-Carbon-deuterium chiral halogenation: I-2,4-dibromopyridine itholakala ngokuphendula i-substrate nge-bromine.
Ulwazi Lokuphepha:
Ukuphepha nokusetshenziswa kwe-2,4-dibromopyridine kufanele kubhekwe ngokwala maphuzu alandelayo:
- Le nhlanganisela inobuthi futhi kufanele iphathwe ngokucophelela.
- Izimpahla zokuzivikela ezifanele ezifana namagilavu, izibuko, nezingubo zokuzivikela kufanele zigqokwe ngesikhathi sokuphatha nokusebenzisa.
- Gwema ukuhogela uthuli lwayo noma ukuthinta isikhumba namehlo.
- Kufanele isetshenziswe endaweni engenawo umoya futhi igweme ukuthintana nomthombo womlilo ukuze ugweme ukubamba umlilo noma ukuqhuma.
- Izinqubo ezifanele zokusebenza eziphephile kufanele zilandelwe ngesikhathi sokuphatha nokugcinwa.
