2 5-dibromo-6-methylpyridine（CAS# 39919-65-8)
Pilikia a palekana
| Nā Code Risk | R20/21/22 – He pōʻino ma ka inhalation, pili me ka ʻili a inā ale ʻia. R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili. R41 – Ka pilikia o ka poino nui i na maka R22 – Poino ke aleia |
| 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. |
| UN ID | UN 2811 6.1/PG 3 |
| WGK Kelemānia | 3 |
| HS Code | 29333990 |
| Nānā Hazard | ʻinoʻino |
| Papa Hazard | HOOLAHA |
| Hui Pūʻulu | III |
2 5-dibromo-6-methylpyridine（CAS#39919-65-8) Hoʻolauna
ʻO ka 2,5-Dibromo-6-methylpyridine kahi hui kūlohelohe. ʻO kēia ka hoʻolauna ʻana i kāna mau waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana:
Nā waiwai:
ʻIke: 2,5-Dibromo-6-methylpyridine he paʻa melemele ʻole a ʻulaʻula paha.
Solubility: Hiki ke hoʻoheheʻe ʻia i loko o kekahi mau mea hoʻoheheʻe organik, e like me ka ethanol, ether a me nā mea hoʻoheheʻe ester.
Hoʻohana: Hiki ke hoʻohana ʻia i ka synthesis organik e hoʻolauna i nā hui methyl a i ʻole ma ke ʻano he bromination reagent.
Kaʻina hoʻomākaukau:
ʻO ke ʻano o ka hoʻomākaukau ʻana o 2,5-Dibromo-6-methylpyridine hiki ke hoʻokō ʻia e nā pae aʻe:
E hoʻoheheʻe i ka 2,6-dimethylpyridine i loko o ka waiʻona, ketone a i ʻole ester solvent.
E hoʻohui i ka bromine a i ʻole bromination reagent i ka hoʻonā hopena.
Hoʻokō ʻia ka hopena ma kahi mahana kūpono, a ʻoi aku ka lōʻihi o ka manawa pane.
Ma hope o ka loaʻa ʻana o ka huahana, hiki ke unuhi ʻia a hoʻomaʻemaʻe ʻia e ka distillation a i ʻole ka hoʻomaʻemaʻe crystallization.
ʻIke palekana:
ʻO 2,5-Dibromo-6-methylpyridine ka meaʻawaʻawa i kekahiʻano a hoʻonāukiuki i kaʻili a me nā maka. Pono e pale aku i ka pili pono. I ka wā o ka hana, pono e hoʻohana ʻia nā mea pale kūpono, e like me nā mīkina lima a me nā maka. Pono e hoʻokō ʻia ka hana ma kahi wahi i hoʻoluʻu maikaʻi ʻia e pale i ka inhalation o nā kinoea ʻino. I ka wā e hoʻolei ai i ka ʻōpala, pono e mālama ʻia e like me nā kānāwai kūloko. Ke hoʻohana a mālama ʻana paha i ka 2,5-dibromo-6-methylpyridine, pono e mālama ʻia e pale i ke ahi a me nā wela kiʻekiʻe.
