2 5 Difluorobenzylbromide (CAS# 85117-99-3)
| Lambobin haɗari | R11 - Mai ƙonewa sosai R34 - Yana haifar da konewa R22 - Yana cutarwa idan an haɗiye shi R36 - Haushi da idanu |
| Bayanin Tsaro | S26 - Idan ana hulɗa da idanu, kurkura nan da nan da ruwa mai yawa kuma ku nemi shawarar likita. S36 / 37/39 - Sanya tufafin kariya masu dacewa, safar hannu da kariya / ido / fuska. S45 - Idan akwai haɗari ko kuma idan kun ji rashin lafiya, nemi shawarar likita nan da nan (nuna alamar a duk lokacin da zai yiwu.) S16 - Ka nisantar da tushen wuta. |
| ID na UN | UN 2924 3/PG 2 |
| WGK Jamus | 3 |
| HS Code | Farashin 29039990 |
| Bayanin Hazard | Lalata/Lachrymatory |
| Matsayin Hazard | 8 |
| Rukunin tattarawa | III |
Gabatarwa
2,5-Difluorobenzyl bromide. Mai zuwa shine gabatarwa ga yanayinsa, amfaninsa, hanyar shiri da bayanin aminci:
inganci:
Bayyanar: 2,5-benzyl difluorobromide ruwa ne mara launi ko ɗan rawaya.
Girma: 1.74-1.76 g/cm³.
Solubility: Mai narkewa a cikin kaushi na halitta kamar su alcohols, ethers da sauran kaushi marasa iyaka.
Amfani:
2,5-difluorobenzyl bromide an fi amfani dashi azaman tsaka-tsaki da kuma albarkatun ƙasa a cikin haɗin kwayoyin halitta.
A cikin haɗin gwiwar kwayoyin halitta, ana amfani da shi don yin fluorine na olefins da zaɓaɓɓen fluorination na mahadi masu ƙanshi.
Hanya:
Shirye-shiryen 2,5-difluorobenzyl bromide za a iya aiwatar da matakai masu zuwa:
Na farko, 2,5-dibromobenzyl da trifluoroacetic acid suna amsawa kuma suna refluxed a cikin iskar gas ko ruwa don shirya 2,5-difluorobenzylbromide bayani.
Zaɓaɓɓen samfurin 2,5-difluorobenzyl bromide ɗin sannan aka yi crystallized, tace, kuma bushe.
Bayanin Tsaro:
2,5-difluorobenzyl bromide yana da wasu guba, kuma ya kamata a dauki matakan tsaro lokacin amfani da shi, guje wa hulɗa da fata, idanu da numfashi.
Lokacin amfani da shiri, yakamata a samar da kayan kariya masu dacewa kamar safofin hannu na dakin gwaje-gwaje, tabarau, da abin rufe fuska.
Ya kamata a yi amfani da shi a cikin wani wuri mai kyau kuma a guje wa hulɗa tare da tushen kunnawa da kuma masu iskar oxygen.
Lokacin adanawa, 2,5-difluorobenzyl bromide ya kamata a kiyaye shi a cikin sanyi, bushe da wuri mai iska, nesa da wuta da abubuwan ƙonewa.
Da fatan za a bi aikin dakin gwaje-gwaje da ya dace da ka'idojin kulawa masu aminci yayin amfani da sarrafa 2,5-difluorobenzyl bromide.
