3-Bromo-2-hydroxy-5-nitropyridine (CAS# 15862-33-6)
Ewu ati Aabo
| Awọn koodu ewu | R22 – Ipalara ti o ba gbe R37 / 38 - Irritating si eto atẹgun ati awọ ara. R41 - Ewu ti pataki ibaje si oju |
| Apejuwe Abo | S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. S39 - Wọ oju / aabo oju. |
| UN ID | UN 2811 6.1 / PGIII |
| WGK Germany | 3 |
| Akọsilẹ ewu | Irritant |
| Kíláàsì ewu | Ìbínú, Mú Òtútù |
Ifihan kukuru
3-Bromo-5-nitro-2-hydroxypyridine jẹ agbo-ara Organic ti o wọpọ ti a pe ni BNHO.
Awọn ohun-ini: Irisi:
- Irisi: BNHO jẹ ina ofeefee gara tabi okuta lulú.
- Solubility: o jẹ die-die tiotuka ninu omi, tiotuka ni oti, ether ati awọn miiran Organic epo.
Nlo:
- Ohun elo aise ipakokoropaeku: BNHO le ṣee lo bi ohun elo aise fun iṣelọpọ ti awọn ipakokoropaeku kan.
Ọna igbaradi:
Awọn ọna igbaradi ti o wọpọ meji wa: ọkan jẹ nipasẹ iṣesi alkylation ti bromobenzene ati 2-hydroxypyridine lati gba 3-bromo-2-hydroxypyridine, ati lẹhinna fesi pẹlu nitric acid lati gba 3-bromo-5-nitro-2-hydroxypyridine. Awọn miiran ni nipasẹ awọn lenu ti 2-bromo-3-methylpyridine pẹlu nitric acid lati gba 3-bromo-5-nitro-2-hydroxypyridine.
Alaye Abo:
- BNHO jẹ ẹya organohalogen ti o jẹ majele ati irritating ati awọn igbese aabo yẹ ki o ṣe akiyesi.
- Yago fun olubasọrọ pẹlu awọ ara, oju ati awọn membran mucous; ni irú olubasọrọ, fọ lẹsẹkẹsẹ pẹlu ọpọlọpọ omi.
- Wọ ohun elo aabo ti ara ẹni ti o yẹ, gẹgẹbi awọn ibọwọ yàrá ati awọn gilaasi ailewu, nigba lilo ati ngbaradi rẹ.
- Yago fun simi simi tabi eruku rẹ ati ṣiṣẹ ni aaye ti o ni afẹfẹ daradara.
- O yẹ ki o wa ni ipamọ ni ibi gbigbẹ, itura ati afẹfẹ kuro lati awọn orisun ina tabi awọn aṣoju oxidising.
