3-Bromo-5-fluoropyridine (CAS# 407-20-5)
| 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 R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara. R20 / 21/22 - ipalara nipasẹ ifasimu, ni olubasọrọ pẹlu awọ ara ati ti o ba gbe. R10 - flammable |
| 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. S36 - Wọ aṣọ aabo to dara. S16 – Jeki kuro lati awọn orisun ti iginisonu. |
| UN ID | UN2811 |
| WGK Germany | 3 |
| HS koodu | 29333990 |
| Akọsilẹ ewu | Irritant |
| Kíláàsì ewu | 6.1 |
Ọrọ Iṣaaju
5-Bromo-3-fluoropyridine jẹ agbo-ara Organic. Atẹle jẹ ifihan si iseda rẹ, lilo, ọna igbaradi ati alaye aabo:
Didara:
- 5-Bromo-3-fluoropyridine jẹ ohun ti o lagbara pẹlu ẹda ti awọn kirisita funfun tabi ofeefee.
- O jẹ agbo organohalogen pẹlu iṣẹ ṣiṣe kemikali giga.
- 5-Bromo-3-fluoropyridine jẹ insoluble ninu omi ni iwọn otutu yara, ṣugbọn tiotuka ninu awọn ohun elo ti o wa ni erupẹ bi ethanol ati ethers.
Lo:
- 5-Bromo-3-fluoropyridine nigbagbogbo lo bi reagent pataki ni iṣelọpọ Organic.
- O ni aropo elekitirofiki to lagbara ati imuṣiṣẹ, ati pe o le ṣee lo fun aropo, idapọ ati awọn aati gigun kẹkẹ ni awọn aati iṣelọpọ Organic.
Ọna:
- 5-Bromo-3-fluoropyridine le ṣepọ nipasẹ awọn ọna oriṣiriṣi, ọna ti o wọpọ julọ ni lati dahun bromofluoropyridine pẹlu acetonitrile.
- 3-Bromopyridine tun le gba nipasẹ ifasilẹ akọkọ pẹlu lithium subbromide lati ṣe 3-bromopyridine, ati lẹhinna fesi pẹlu iṣuu soda fluoride lati gba 5-bromo-3-fluoropyridine.
Alaye Abo:
- 5-Bromo-3-fluoropyridine jẹ agbo-ara Organic ti o lewu ati pe o nilo itọju ailewu ninu yàrá.
- O le ni ipa irritating lori awọn oju ati awọ ara ati olubasọrọ taara yẹ ki o yago fun.
- 5-Bromo-3-fluoropyridine yẹ ki o wa ni ipamọ ni apo-ipamọ afẹfẹ, kuro lati ina ati awọn iwọn otutu to gaju.
- Nigbati o ba nlo ati mimu, tẹle awọn ilana ṣiṣe ailewu ti o yẹ ati ni ipese pẹlu ohun elo aabo ti o yẹ gẹgẹbi awọn ibọwọ ati awọn goggles.
