2-Fluoro-5-bromo-3-methylpyridine (CAS# 29312-98-9)
| Zizindikiro Zowopsa | R20/21/22 - Zowopsa pokoka mpweya, kukhudzana ndi khungu komanso kumeza. R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. R41 - Kuopsa kwa kuwonongeka kwakukulu kwa maso R37/38 - Zokwiyitsa dongosolo la kupuma ndi khungu. R22 - Zowopsa ngati zitamezedwa |
| Kufotokozera Zachitetezo | S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S36 - Valani zovala zoyenera zodzitetezera. S39 - Valani chitetezo chamaso / kumaso. S37 - Valani magolovesi oyenera. |
| HS kodi | 29339900 |
| Kalasi Yowopsa | ZOKWIYA |
Mawu Oyamba
Ndi organic pawiri ndi mankhwala chilinganizo C7H6BrFN.
Chilengedwe:
-Maonekedwe: Madzi opanda mtundu mpaka owala achikasu
-Posungunuka: -3 ℃
- Malo otentha: 204-205 ℃
-Kuchulukana: 1.518g/cm³
-Kusungunuka: Kusungunuka pang'ono m'madzi, kusungunuka muzosungunulira zambiri
Gwiritsani ntchito:
Amagwiritsidwa ntchito kwambiri mu kaphatikizidwe ka organic ngati chinthu chapakati chofunikira. Itha kugwiritsidwa ntchito popanga mankhwala, mankhwala ophera tizilombo ndi ma organic mankhwala.
Njira:
Njira yokonzekera ndi iyi:
1. Ndi 2-fluoropyridine ndi kuchuluka kwa methyl bromide pamaso pa oxidant chlorine kapena carbon peroxide reaction.
2. Zimakonzedwa ndi zomwe 2-bromo-5-fluoropyridine ndi methyl lithiamu.
Zambiri Zachitetezo:
Zitha kukhala zokwiyitsa komanso zowononga thupi la munthu, chifukwa chake muyenera kusamala zachitetezo mukachigwiritsa ntchito, kuphatikiza kuvala magolovesi oteteza, magalasi ndi zovala zoteteza. Pewani kutulutsa nthunzi yake kapena kukhudza khungu ndi maso. Ngati mutakowetsedwa kapena kuikidwa pawiri, sambani malo omwe akhudzidwa mwamsanga ndikupempha thandizo lachipatala ngati kuli kofunikira.
