2 5-difluorobenzonitrile (CAS# 64248-64-2)
| Awọn koodu ewu | R20 / 21/22 - ipalara nipasẹ ifasimu, ni olubasọrọ pẹlu awọ ara ati ti o ba gbe. R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara. |
| 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. S36 / 37 - Wọ aṣọ aabo ati awọn ibọwọ to dara. |
| UN ID | UN 1325 4.1/PG2 |
| WGK Germany | 3 |
| HS koodu | 29269090 |
| Akọsilẹ ewu | Oloro |
| Kíláàsì ewu | 6.1 |
| Iṣakojọpọ Ẹgbẹ | III |
Ọrọ Iṣaaju
2,5-Difluorobenzonitrile jẹ ẹya Organic yellow. Atẹle jẹ ifihan si diẹ ninu awọn ohun-ini, awọn lilo, awọn ọna igbaradi ati alaye ailewu ti 2,5-difluorobenzonitrile:
Didara:
- 2,5-Difluorobenzonitrile jẹ awọ-awọ-awọ-awọ-awọ-awọ ofeefee kan ti o ni õrùn õrùn.
- 2,5-difluorobenzonitrile fẹrẹ jẹ insoluble ninu omi ni iwọn otutu yara, ṣugbọn tiotuka ninu awọn nkan ti o nfo Organic gẹgẹbi ethanol, acetone, ati bẹbẹ lọ.
- O ti wa ni a yellow pẹlu kan to lagbara oorun didun.
Lo:
- 2,5-Difluorobenzonitrile jẹ lilo pupọ ni iṣelọpọ Organic bi reagent kemikali fun igbaradi ti awọn agbo ogun Organic miiran.
O jẹ lilo ni igbagbogbo ni awọn aati fluorination ati awọn aati aromatization nitori iṣafihan awọn ọta fluorine le yi awọn ohun-ini ti awọn agbo ogun pada, jijẹ hydrophobicity wọn ati iduroṣinṣin kemikali.
Ọna:
- 2,5-difluorobenzonitrile le ti wa ni pese sile nipasẹ aromatic aropo lenu. Ọna igbaradi ti o wọpọ ni lati fesi para-dinitrobenzene pẹlu awọn nitrosamines catalyzed nipasẹ cuprous kiloraidi ati hydrofluoric acid lati gba 2,5-difluorobenzonitrile.
Alaye Abo:
- Nigbati o ba n mu 2,5-difluorobenzonitrile, wọ awọn ohun elo aabo ti o yẹ gẹgẹbi awọn ibọwọ aabo kemikali, awọn goggles, ati ẹwu laabu kan.
- O jẹ agbo-ara ti o ni ibinu ti o le fa ibinu si oju, awọ ara, ati atẹgun atẹgun.
- Inhalation ti awọn rẹ vapors tabi eruku, awọ ara ati oju olubasọrọ yẹ ki o wa yee nigba mimu.
- Ifarabalẹ yẹ ki o san si ina ati awọn idena idena bugbamu nigba ipamọ ati lilo, ki o si yago fun awọn orisun ina ati awọn oxidants.
