4-Bromo-3-nitrobenzoic acid (CAS # 6319-40-0)
| Koodu ihe egwu | R36 / 37/38 - na-akpasu iwe na anya, usoro iku ume na akpụkpọ ahụ. R22 - na-emerụ ma ọ bụrụ na iloro ya |
| Nkọwapụta nchekwa | S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike. S36 / 37/39 - Yiri uwe nchebe kwesịrị ekwesị, uwe aka na nchebe anya / ihu. |
| WGK Germany | 3 |
| Koodu HS | 29163990 |
| Ihe edeturu egwu | Iwe iwe |
Okwu mmalite
3-nitro-4-bromobenzoic acid bụ ngwakọta organic nwere usoro C7H4BrNO4.
Ọdịdị:
- Ọdịdị: kristal na-enweghị agba ma ọ bụ ntụ ntụ kristal edo edo.
- ebe mgbaze: 215-218 ℃.
-Solubility: Solubility na mmiri dị ntakịrị, soluble na ethanol, ether na chloroform na ihe ndị ọzọ na-edozi ahụ.
Jiri:
3-nitro-4-bromobenzoic acid bụ ihe dị mkpa organic njikọ n'etiti, nke a na-ejikarị na-emepụta ọgwụ synthesis na agba agba.
-Nchịkọta ọgwụ: enwere ike iji mee ihe dị ka ihe mmalite maka njikọ nke ụfọdụ ọgwụ mgbochi mkpali na-abụghị steroidal na ọgwụ ndị ọzọ.
- Industrylọ ọrụ ịcha akwa: enwere ike iji ya maka ịcha akwa na pigmenti.
Ụzọ nkwadebe:
Enwere ike ịkwadebe 3-nitro-4-bromobenzoic acid site na nitration nke 4-bromobenzoic acid. Usoro ndị a kapịrị ọnụ bụ ndị a:
1. Igbari 4-bromobenzoic acid na ngwakọta ngwakọta nke nitric acid na glacial acetic acid.
2. Gwakọta ngwakọta mmeghachi omume na obere okpomọkụ.
3. A na-ehichapụ ngwaahịa a na-agbanye na ngwakọta mmeghachi omume ma saa ya, wee kpoo ya iji nweta 3-nitro-4-bromobenzoic acid.
Ozi nchekwa:
3-nitro-4-bromobenzoic acid nwere mmetụta na-akpali akpali na akpụkpọ ahụ na anya, ma ekwesịrị ịsacha ya nke ọma mgbe kọntaktị gasịrị. Mgbe a na-eji ya na nchekwa, zere ikuru uzuzu ya ma yikwasị ngwa nchebe ma ọ bụrụ na ọ dị mkpa. Tụkwasị na nke ahụ, 3-nitro-4-bromobenzoic acid nwekwara ike imerụ gburugburu ebe obibi, ya mere ekwesịrị iji nlezianya mee ihe kwekọrọ n'ụkpụrụ nchekwa gburugburu ebe obibi dị mkpa.
