4-Bromo-3-nitrobenzoic acid (CAS# 6319-40-0)
| Zizindikiro Zowopsa | R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. R22 - Zowopsa ngati zitamezedwa |
| Kufotokozera Zachitetezo | S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso. |
| WGK Germany | 3 |
| HS kodi | 29163990 |
| Zowopsa | Zokwiyitsa |
Mawu Oyamba
3-nitro-4-bromobenzoic acid ndi organic pawiri ndi formula C7H4BrNO4.
Chilengedwe:
-Maonekedwe: Krustalo wopanda mtundu kapena ufa wonyezimira wachikasu wonyezimira.
-malo osungunuka: 215-218 ℃.
-Kusungunuka: Kusungunuka m'madzi ndi kochepa, kusungunuka mu ethanol, etha ndi chloroform ndi zosungunulira zina.
Gwiritsani ntchito:
3-nitro-4-bromobenzoic acid ndi yofunika organic synthesis wapakatikati, amene chimagwiritsidwa ntchito kaphatikizidwe mankhwala ndi utoto makampani.
- Mankhwala kaphatikizidwe: angagwiritsidwe ntchito ngati kalambulabwalo kwa synthesis ena sanali steroidal odana ndi yotupa mankhwala ndi mankhwala ena.
- Makampani opanga utoto: amatha kugwiritsidwa ntchito popanga utoto ndi utoto.
Njira Yokonzekera:
3-nitro-4-bromobenzoic asidi akhoza kukonzekera ndi nitration wa 4-bromobenzoic asidi. Njira zenizeni ndi izi:
1. Sungunulani 4-bromobenzoic acid mu njira yosakaniza ya nitric acid ndi glacial acetic acid.
2. Muziganiza zimene osakaniza pa otsika kutentha.
3. The mankhwala precipitated mu anachita osakaniza ndi wosefedwa ndi kutsukidwa, ndiyeno zouma kupeza 3-nitro-4-bromobenzoic asidi.
Zambiri Zachitetezo:
3-nitro-4-bromobenzoic acid imakhala yolimbikitsa pakhungu ndi maso, ndipo iyenera kutsukidwa bwino mukakumana. Mukamagwiritsa ntchito ndikusunga, pewani kutulutsa fumbi lake ndikuvala zida zodzitetezera ngati kuli kofunikira. Kuphatikiza apo, 3-nitro-4-bromobenzoic acid imathanso kuwononga chilengedwe, chifukwa chake tiyenera kusamala kuti tizitsatira malamulo okhudzana ndi chitetezo cha chilengedwe.
