2 5Difluorobenzylbromide（CAS# 85117-99-3)
| Nā Code Risk | R11 – Hiki ke ahi R34 - Ke kumu o ke kuni R22 – Poino ke aleia R36 – He mea hoʻonāukiuki i nā maka |
| Ka wehewehe palekana | S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino. S36/37/39 – E hoʻohana i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka. S45 – Inā loaʻa ka pōʻino a i ʻole ka maikaʻi ʻole, e ʻimi koke i ka ʻōlelo aʻo kino (e hōʻike i ka lepili inā hiki.) S16 – E hoʻokaʻawale i nā kumu hoʻā. |
| UN ID | UN 2924 3/PG 2 |
| WGK Kelemānia | 3 |
| HS Code | 29039990 |
| Nānā Hazard | ʻAiʻino/Lachrymatory |
| Papa Hazard | 8 |
| Hui Pūʻulu | III |
Hoʻolauna
2,5-Difluorobenzyl bromide. ʻO kēia ka hoʻolauna ʻana i kona ʻano, hoʻohana, ʻano hoʻomākaukau a me ka ʻike palekana:
ʻAno maikaʻi:
ʻIke: 2,5-benzyl difluorobromide he wai kala ʻole a melemele iki paha.
Māmā: 1.74-1.76 g/cm³.
Solubility: Hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik e like me nā waiʻona, nā etera a me nā mea hoʻoheheʻe non-polar.
E hoʻohana:
Hoʻohana nui ʻia ʻo 2,5-difluorobenzyl bromide ma ke ʻano he hui waena a me ka maka i loko o ka synthesis organik.
I loko o ka organik synthesis, hoʻohana maʻamau ia no ka fluorination o nā olefins a me ka fluorination koho o nā mea ʻala.
Hanana:
ʻO ka hoʻomākaukau ʻana i ka 2,5-difluorobenzyl bromide hiki ke hana ʻia e nā pae aʻe:
ʻO ka mea mua, hoʻopili ʻia ka 2,5-dibromobenzyl a me ka trifluoroacetic acid a refluxed i loko o kahi condensate kinoea a i ʻole wai e hoʻomākaukau ai i ka hopena 2,5-difluorobenzylbromide.
ʻO ka huahana 2,5-difluorobenzyl bromide maʻemaʻe a laila crystallized, kānana, a maloʻo.
ʻIke palekana:
ʻO ka 2,5-difluorobenzyl bromide kekahi mau mea make, a pono e mālama i ka palekana i ka wā e hoʻohana ai, e pale aku i ka pili ʻana me ka ʻili, nā maka a me ka ʻōpū hanu.
I ka wā o ka hoʻohana ʻana a me ka hoʻomākaukau ʻana, pono e hāʻawi ʻia nā mea pale kūpono e like me nā mīkina lima lima lima, nā maka aniani, a me nā pale pale.
Pono e hoʻohana ʻia ma kahi wahi e hoʻoheheʻe maikaʻi ʻia a pale aku i ka hoʻopili ʻana me nā kumu ignition a me nā mea oxidants.
I ka wā e mālama ai, pono e mālama ʻia ka 2,5-difluorobenzyl bromide i kahi maloʻo, maloʻo a me ka ea, mai ke ahi a me nā mea puhi.
E ʻoluʻolu e hahai i nā hana hoʻokolohua kūpono a me nā alakaʻi mālama ʻana i ka wā e hoʻohana ai a e lawelawe ana i ka 2,5-difluorobenzyl bromide.
