4-Bromo-3-nitrobenzoic acid (CAS # 6319-40-0)
| Awọn koodu ewu | R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara. R22 – Ipalara ti o ba gbe |
| Apejuwe Abo | S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. S36 / 37/39 - Wọ aṣọ aabo to dara, awọn ibọwọ ati aabo oju / oju. |
| WGK Germany | 3 |
| HS koodu | 29163990 |
| Akọsilẹ ewu | Irritant |
Ọrọ Iṣaaju
3-nitro-4-bromobenzoic acid jẹ agbo-ara Organic pẹlu agbekalẹ C7H4BrNO4.
Iseda:
-Irisi: Crystal ti ko ni awọ tabi ina lulú kirisita ofeefee.
-yo ojuami: 215-218 ℃.
-Solubility: Solubility ninu omi jẹ kekere, tiotuka ni ethanol, ether ati chloroform ati awọn miiran Organic epo.
Lo:
3-nitro-4-bromobenzoic acid jẹ agbedemeji iṣelọpọ Organic pataki, eyiti o lo pupọ ni iṣelọpọ oogun ati ile-iṣẹ dye.
-Idapọ oogun: le ṣee lo bi iṣaju fun iṣelọpọ diẹ ninu awọn oogun egboogi-iredodo ti kii-sitẹriọdu ati awọn oogun miiran.
-Dye ile ise: le ṣee lo fun sintetiki dyes ati pigments.
Ọna Igbaradi:
3-nitro-4-bromobenzoic acid ni a le pese sile nipasẹ nitration ti 4-bromobenzoic acid. Awọn igbesẹ pato jẹ bi atẹle:
1. Tu 4-bromobenzoic acid ni ojutu adalu nitric acid ati glacial acetic acid.
2. Aruwo adalu lenu ni iwọn otutu kekere.
3. Awọn ọja precipitated ni lenu adalu ti wa ni filtered ati ki o fo, ati ki o si dahùn o lati gba 3-nitro-4-bromobenzoic acid.
Alaye Abo:
3-nitro-4-bromobenzoic acid ni ipa didan lori awọ ara ati oju, ati pe o yẹ ki o wa ni mimọ ni kikun lẹhin olubasọrọ. Lakoko lilo ati ibi ipamọ, yago fun simi eruku rẹ ki o wọ ohun elo aabo ti o ba jẹ dandan. Ni afikun, 3-nitro-4-bromobenzoic acid le tun fa ipalara si ayika, nitorinaa o yẹ ki a ṣe itọju lati ni ibamu pẹlu awọn ilana aabo ayika ti o yẹ.
