2 5-Dibromo-3-methylpyridine (CAS# 3430-18-0)
| Amakhodi Engozi | I-R22 – Iyingozi uma igwinywe R36/38 – Ukucasuka emehlweni nasesikhumbeni. R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. |
| 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. |
| Ama-ID e-UN | UN 2811 6.1/PG 3 |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29333990 |
| I-Hazard Class | 6.1 |
| Iqembu Lokupakisha | III |
Isingeniso
I-2,5-Dibromo-3-trimethylpyridine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso kwezinye zezakhiwo zayo, ukusetshenziswa, izindlela zokukhiqiza kanye nolwazi lokuphepha:
Ikhwalithi:
- Ukubukeka: I-2,5-Dibromo-3-trimethylpyridine iwuketshezi olungenambala oluphuzi oluphuzi.
- Ukunyibilika: Ingancibilika kuzincibilikisi eziningi eziphilayo, njenge-ethanol, i-acetone, ne-dimethyl sulfoxide.
- Ukuzinza: Azinzile ekukhanyeni nasekushiseni, kodwa ukubola kungenzeka ngaphansi kwezimo ezinamandla ze-alkaline.
Sebenzisa:
- Njenge-catalyst: I-2,5-dibromo-3-trimethylpyridine ingasetshenziswa njenge-ejenti ye-brominating ukuze ibangele ukusabela okuthile kwezinto eziphilayo, njenge-nucleophilic substitution, i-oxidation, ne-condensation.
- I-Organic synthesis: Ingasetshenziswa njengendawo ephakathi ekuhlanganisweni kwezinhlanganisela eziphilayo, ikakhulukazi izinhlanganisela eziqukethe i-ketone noma amaqembu e-aldehyde.
- Odayi be-photosensitive: Ingasetshenziswa futhi ekulungiseni odayi be-photosensitive.
Indlela:
Ngokuvamile, i-2,5-dibromo-3-trimethylpyridine ingalungiswa ngokusabela kwe-bromination ne-bromine njenge-reactant ohlelweni lokusabela lwe-trimethylpyridine. Izimo zokusabela zinganqunywa esimweni ngasinye, kodwa kufanele kuqashelwe ukusebenza okuphephile.
Ulwazi Lokuphepha:
- I-2,5-Dibromo-3-trimethylpyridine iyagqwala esikhumbeni nasemehlweni futhi kufanele igwenywe lapho uthintana ngqo.
- Gqoka izingubo zamehlo ezivikelayo, amagilavu nezingubo zokuzivikela lapho usebenzisa.
- Isebenza endaweni engenawo umoya futhi ugweme ukuhogela umhwamuko wayo.
- Gwema ukuthintana nama-oxidizing agents anamandla, angabangela ukusabela okuyingozi.
- Imfucuza kufanele ilahlwe ngokuhambisana nemithetho yendawo.
