2-Bromo-3-methyl-5-chloropyridine（CAS# 65550-77-8)
| Nā Code Risk | R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili. R41 – Ka pilikia o ka poino nui i na maka R37/38 – Hoʻonanea i ka ʻōnaehana hanu a me ka ʻili. R22 – Poino ke aleia |
| Ka wehewehe palekana | S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino. S39 - Hoʻohana i ka pale maka / maka. |
Hoʻolauna
ʻO ka 2-Bromo-5-chloro-3-picoline he mea hoʻohuihui mea ola me ke kumu kemika C7H6BrClN. Eia ka wehewehe ʻana o nā waiwai, hoʻohana, hoʻomākaukau a me ka ʻike palekana o ka pūhui:
ʻAno:
-Nani: 2-Bromo-5-chloro-3-picoline he wai kala ʻole a melemele iki paha.
-Solubility: Hiki ke hoʻoheheʻe ʻia i nā mea hoʻoheheʻe kūlohelohe, e like me ka ethanol, dimethylformamide a me ka chloroform.
-Ka helu hoʻoheheʻe a me ka helu hoʻolapalapa: ʻO ka helu hoʻoheheʻe o ka hui ma kahi o -35 ° C, a ʻo ka helu hoʻolapalapa ma kahi o 205-210 ° C.
E hoʻohana:
- Hiki ke hoʻohana ʻia ʻo 2-Bromo-5-chloro-3-picoline ma ke ʻano he mea hoʻomaka a i ʻole waena i ka synthesis organik, a hiki ke hoʻohana ʻia e synthesize i nā pūhui ʻē aʻe, e like me nā pesticides a me nā lāʻau lapaʻau.
-Hoʻohana nui ʻia ia i nā intermediates synthetic, polychlorinated biphenyls, polybrominated biphenyls a me nā puaʻa.
Kaʻina hoʻomākaukau:
- Hoʻomākaukau ʻia ka 2-Bromo-5-chloro-3-picoline e ka bromination a me ka chlorination o 3-picoline. ʻO ka mua, hoʻopili ʻia ka 3-methylpyridine me ka hydrogen bromide e loaʻa ai ka 2-bromo-5-methylpyridine, a laila hoʻopili ʻia ka huahana me kahi catalyst metala chloride e loaʻa ai ka huahana i manaʻo ʻia.
ʻIke palekana:
- 2-Bromo-5-chloro-3-picoline maʻamau ʻaʻole e hoʻopilikia nui ma lalo o nā kūlana hoʻohana maʻamau. Eia naʻe, hiki ke hoʻonāukiuki i ka maka, ka ʻili a me ka ʻōpū hanu, no laila pono e mālama ʻia e pale aku i ka hoʻopili pololei ʻana.
-E hoʻohana me nā mea pale kūpono, e like me nā mīkina lima kemika, nā maka aniani a me nā pale maka.
- Pono e hahai ʻia nā hana hoʻokolohua maikaʻi i ka wā o ka hoʻohana ʻana a pono e mālama ʻia ka ventila maikaʻi.
-E hōʻalo i ka hoʻopili ʻana me nā oxidants ikaika a me nā waikawa ikaika i ka wā e mālama ai a mālama ʻia.
