3-Chloro-4-fluorobenzyl bromide (CAS # 192702-01-5)
Ewu ati Aabo
| Awọn koodu ewu | R34 - Awọn okunfa sisun 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. S45 – Ni ọran ti ijamba tabi ti o ba ni ailara, wa imọran iṣoogun lẹsẹkẹsẹ (fi aami han nigbakugba ti o ṣee ṣe.) |
| UN ID | 3265 |
| HS koodu | 29039990 |
| Akọsilẹ ewu | Ibajẹ / Lachrymatory |
| Kíláàsì ewu | 8 |
| Iṣakojọpọ Ẹgbẹ | III |
3-Chloro-4-fluorobenzyl bromide (CAS # 192702-01-5) Ifihan
3-Chloro-4-fluorobenzyl bromide jẹ ohun ti o lagbara pẹlu õrùn ti iwa ti o jọra si bromobenzene. O ni aaye yo ti nipa 38-39 ° C. Ati aaye gbigbọn ti iwọn 210-212 ° C. Ni iwọn otutu yara, o fẹrẹ jẹ insoluble ninu omi, ṣugbọn tiotuka ni ọpọlọpọ awọn ohun-elo Organic.
Lo:
3-Chloro-4-fluorobenzyl bromide ni ọpọlọpọ awọn ohun elo ni iṣelọpọ Organic. O jẹ agbedemeji pataki fun igbaradi ti awọn agbo ogun Organic miiran, gẹgẹbi awọn oogun, awọn awọ ati awọn ipakokoropaeku. O tun lo ni igbaradi ti awọn idaduro ina, awọn ohun elo ti o ṣe akiyesi ati awọn oluyipada resini.
Ọna:
3-Chloro-4-fluorobenzyl bromide ni a gba ni gbogbogbo nipasẹ didaṣe bromobenzene pẹlu tert-butyl magnẹsia bromide. Ni akọkọ, tert-butylmagnesium bromide ni a ṣe pẹlu bromobenzene ni iwọn otutu kekere lati gba tert-butylphenylcarbinol. Lẹhinna, nipasẹ chlorination ati fluorination, awọn ẹgbẹ carbinol le yipada si chlorine ati fluorine, ati 3-Chloro-4-fluorobenzyl bromide ti ṣẹda. Nikẹhin, ọja ibi-afẹde le ṣee gba nipasẹ isọdọmọ nipasẹ distillation.
Alaye Abo:
Lo 3-Chloro-4-fluorobenzyl bromide pẹlu akiyesi si majele ati irritation. O le fa ibinu si eto atẹgun, awọ ara ati oju. Yago fun olubasọrọ pẹlu awọ ara, oju ati atẹgun atẹgun nigba isẹ. Wọ awọn ohun elo aabo ti o yẹ, gẹgẹbi awọn ibọwọ, awọn goggles ati awọn apata oju. Ni afikun, o yẹ ki o wa ni ipamọ ni aaye ti o dara daradara ki o si yago fun olubasọrọ pẹlu awọn nkan bi awọn oxidants ti o lagbara. Ti o ba gbe tabi fifun, wa itọju ilera lẹsẹkẹsẹ. Jọwọ ka awọn ilana aabo ọja ni pẹkipẹki ṣaaju lilo.
