25Difluorobenzylbromide (CAS# 85117-99-3)
| Awọn koodu ewu | R11 - Gíga flammable R34 - Awọn okunfa sisun R22 – Ipalara ti o ba gbe R36 - Irritating si awọn oju |
| 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. S45 – Ni ọran ti ijamba tabi ti o ba ni ailara, wa imọran iṣoogun lẹsẹkẹsẹ (fi aami han nigbakugba ti o ṣee ṣe.) S16 – Jeki kuro lati awọn orisun ti iginisonu. |
| UN ID | UN 2924 3/PG 2 |
| WGK Germany | 3 |
| HS koodu | 29039990 |
| Akọsilẹ ewu | Ibajẹ / Lachrymatory |
| Kíláàsì ewu | 8 |
| Iṣakojọpọ Ẹgbẹ | III |
Ọrọ Iṣaaju
2,5-Difluorobenzyl bromide. Atẹle jẹ ifihan si iseda rẹ, lilo, ọna igbaradi ati alaye aabo:
Didara:
Irisi: 2,5-benzyl difluorobromide jẹ omi ti ko ni awọ tabi die-die ofeefee.
Ìwọ̀n: 1.74-1.76 g/cm³.
Solubility: Soluble ni Organic epo bi alcohols, ethers ati ti kii-pola epo.
Lo:
2,5-difluorobenzyl bromide jẹ lilo akọkọ bi agbedemeji ati ohun elo aise ni iṣelọpọ Organic.
Ninu iṣelọpọ Organic, o jẹ lilo nigbagbogbo fun fluorination ti olefins ati fluorination yiyan ti awọn agbo ogun oorun.
Ọna:
Igbaradi ti 2,5-difluorobenzyl bromide le ṣee ṣe nipasẹ awọn igbesẹ wọnyi:
Ni akọkọ, 2,5-dibromobenzyl ati trifluoroacetic acid ni a ṣe atunṣe ati ki o tun pada sinu condensate gaasi tabi omi lati pese ojutu 2,5-difluorobenzylbromide.
Ọja 2,5-difluorobenzyl bromide mimọ ti wa ni kiristali, ti a ṣe iyọ, ati gbigbe.
Alaye Abo:
2,5-difluorobenzyl bromide ni awọn majele kan, ati awọn iṣọra ailewu yẹ ki o mu nigba lilo rẹ, yago fun olubasọrọ pẹlu awọ ara, oju ati atẹgun atẹgun.
Lakoko lilo ati igbaradi, awọn ohun elo aabo ti o yẹ gẹgẹbi awọn ibọwọ yàrá, awọn goggles, ati awọn iboju iparada yẹ ki o pese.
O yẹ ki o ṣiṣẹ ni agbegbe ti o ni afẹfẹ daradara ati yago fun olubasọrọ pẹlu awọn orisun ina ati awọn oxidants.
Nigbati o ba tọju, 2,5-difluorobenzyl bromide yẹ ki o wa ni ipamọ ni ibi ti o tutu, gbẹ ati ti afẹfẹ, kuro lati ina ati awọn ijona.
Jọwọ tẹle iṣe adaṣe yàrá ti o tọ ati awọn ilana imudani ailewu nigba lilo ati mimu 2,5-difluorobenzyl bromide mu.
