3-Bromo-2-hydroxy-5-nitropyridine (CAS# 15862-33-6)
Ngozi ndi Chitetezo
| Zizindikiro Zowopsa | R22 - Zowopsa ngati zitamezedwa R37/38 - Zokwiyitsa dongosolo la kupuma ndi khungu. R41 - Kuopsa kwa kuwonongeka kwakukulu kwa maso |
| Kufotokozera Zachitetezo | S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S39 - Valani chitetezo chamaso / kumaso. |
| Ma ID a UN | UN 2811 6.1 / PGIII |
| WGK Germany | 3 |
| Zowopsa | Zokwiyitsa |
| Kalasi Yowopsa | ZOKWITSA, ZIZILA |
Chiyambi chachidule
3-Bromo-5-nitro-2-hydroxypyridine ndi gulu lachilengedwe lomwe limafupikitsidwa ngati BNHO.
Katundu: Mawonekedwe:
- Maonekedwe: BNHO ndi kristalo wonyezimira wachikasu kapena ufa wa crystalline.
- Kusungunuka: kumasungunuka pang'ono m'madzi, kusungunuka mu mowa, ether ndi zosungunulira zina.
Zogwiritsa:
- Zopangira mankhwala: BNHO itha kugwiritsidwa ntchito ngati zopangira popanga mankhwala ena ophera tizilombo.
Njira yokonzekera:
Pali njira ziwiri zokonzekera zodziwika bwino: imodzi ndi kudzera mu alkylation reaction ya bromobenzene ndi 2-hydroxypyridine kuti ipeze 3-bromo-2-hydroxypyridine, ndikuchitapo ndi nitric acid kuti ipeze 3-bromo-5-nitro-2-hydroxypyridine. Zina ndi zomwe 2-bromo-3-methylpyridine ndi nitric acid kupeza 3-bromo-5-nitro-2-hydroxypyridine.
Zambiri Zachitetezo:
- BNHO ndi gulu la organohalogen lomwe ndi lapoizoni komanso lokwiyitsa komanso zoteteza ziyenera kuwonedwa.
- Pewani kukhudzana ndi khungu, maso ndi mucous nembanemba; ngati mwakhudzana, yambani nthawi yomweyo ndi madzi ambiri.
- Valani zida zodzitetezera zoyenera, monga magolovesi a mu labotale ndi magalasi oteteza chitetezo, mukamagwiritsa ntchito ndikuzikonza.
- Pewani kutulutsa mpweya kapena fumbi lake ndikugwirira ntchito pamalo abwino mpweya wabwino.
- Iyenera kusungidwa pamalo owuma, ozizira komanso opanda mpweya wabwino kutali ndi zoyatsira kapena zopangira okosijeni.
