4-Bromo-3-nitrobenzoic acid (CAS# 6319-40-0)
| Iikhowudi zoMngcipheko | R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R22 – Iyingozi xa iginyiwe |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36/37/39 – Nxiba iimpahla ezifanelekileyo zokukhusela, iiglavu kunye nokukhusela amehlo/ubuso. |
| WGK eJamani | 3 |
| Ikhowudi ye-HS | 29163990 |
| Inqaku Lengozi | Iyacaphukisa |
Intshayelelo
I-3-nitro-4-bromobenzoic acid i-organic compound kunye ne-formula C7H4BrNO4.
Indalo:
-Imbonakalo: Ikristale engenambala okanye umgubo wekristale okhanyayo otyheli.
Indawo yokunyibilika: 215-218 ℃.
-Ukunyibilika: Ukunyibilika emanzini kuncinci, ukunyibilika kwi-ethanol, i-ether kunye nekloroform kunye nezinye izinyibilikisi eziphilayo.
Sebenzisa:
I-3-nitro-4-bromobenzoic acid yinto ebalulekileyo ye-organic synthesis intermediate, esetyenziswa ngokubanzi kwi-pharmaceutical synthesis kunye neshishini ledayi.
-I-Drug synthesis: ingasetyenziswa njenge-precursor ye-synthesis yezinye iziyobisi ezingekho-steroidal ezichasayo kunye nezinye iziyobisi.
-Ishishini ledayi: lingasetyenziselwa iidayi zokwenziwa kunye neepigments.
Indlela yokulungiselela:
I-3-nitro-4-bromobenzoic acid ingalungiswa nge-nitrate ye-4-bromobenzoic acid. Amanyathelo athile ngala alandelayo:
1. Dissolve i-4-bromobenzoic acid kwisisombululo esixubileyo se-nitric acid kunye ne-glacial acetic acid.
2. Gxuma umxube wokuphendula kwiqondo lokushisa eliphantsi.
3. Imveliso ye-precipitated kumxube wokuphendula iyahluzwa kwaye ihlanjwe, ize yomiswe ukuze ifumane i-3-nitro-4-bromobenzoic acid.
Ulwazi ngoKhuseleko:
I-3-nitro-4-bromobenzoic acid inefuthe elikhuthazayo kwesikhumba kunye namehlo, kwaye kufuneka ihlambuluke ngokupheleleyo emva koqhagamshelwano. Ngexesha lokusetyenziswa kunye nokugcinwa, kunqanda ukuphefumla uthuli lwayo kwaye unxibe izixhobo zokukhusela ukuba kuyimfuneko. Ukongeza, i-3-nitro-4-bromobenzoic acid nayo inokubangela ubungozi kokusingqongileyo, ngoko ke kufuneka kuthathelwe ingqalelo ukuthobela imigaqo efanelekileyo yokhuseleko lokusingqongileyo.
