2 3 5-Trichloropyridine（CAS# 16063-70-0)
Pilikia a palekana
| Nā hōʻailona pōʻino | Xi – Hoʻohaunaele |
| Nā Code Risk | R52/53 – He pōʻino i nā mea ola wai, hiki ke hoʻopōʻino i ka wā lōʻihi i ke kaiapuni wai. R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili. |
| Ka wehewehe palekana | S61 - Hōʻalo i ka hoʻokuʻu ʻana i ke kaiapuni. E nānā i nā ʻōlelo kuhikuhi kūikawā / pepa ʻikepili 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. |
| UN ID | UN 2811 6.1/PG 3 |
| WGK Kelemānia | 2 |
| RTECS | UU0525000 |
| HS Code | 29333990 |
| Nānā Hazard | Hoʻonanea |
2 3 5-Trichloropyridine（CAS# 16063-70-0) ʻIkepili
| hoʻolauna | ʻO ka 2,3, 5-trichloropyridine he paʻa melemele māmā a he mea koʻikoʻi kemika maikaʻi. Hoʻopili ka 2,3,5-trichloropyridine me ka alkali metala hydroxide e hoʻomākaukau ai i ka 3,5-dichloro-2-pyridine phenol, he mea waiwai nui ia no ka synthesis o nā mites insecticidal a me ka herbicide oxaloether. 2,3, 5-trichloropyridine hiki no hoi e hou fluorinated e synthesize 2, 3-difluoro-5-chloropyridine, ka mea kumu kumu no ka synthesis o herbicide alkynurate. |
| hoomakaukau ana | Ua hoʻohui ʻia he 60g o ka methanol i loko o kahi pahu ʻehā waha 1000mL, 100g. Ua hoʻohui ʻia ka 2,3,5,6-tetrachloropyridine a me 31.7g o ka hydrazine hydrate, ua hoʻokiʻekiʻe ʻia ka mahana i 60-65 ℃, ua hana ʻia ka hopena mālama wela no kahi o 2 mau hola, ua pau ka hopena, ua hoʻohaʻahaʻa ʻia ka mahana. 0-5 ℃, ua hoʻohaʻahaʻa ʻia ka mahana i 1 hola, ua kānana ʻia ka paʻa, a ʻo ka paʻa he 2,3, Ua hoʻomaloʻo ʻia ka 5-trichlor6-hydrazinyl pyridine hydrate no ka loaʻa ʻana o 101.6g o ka paʻa keʻokeʻo me 96% hua a me 98.5% ʻike. Hoʻohui i 100g 2,3,5-trichloro 6-hydrazinyl pyridine hydrate, 50g o 5% sodium hydroxide aqueous solution i 1000ml o eha waha omole, e hookiekie i ka wela i 70-75 ℃, e hoonui i 387.6g o 10% sodium hypochlorite aqueous solution dropwise, mālama i ka mahana ma 70-75 ℃, pane no 1 hola, hoʻopau i ka hopena, ʻoluʻolu i ka 5-10 ℃, e hoʻoulu i ka hola 1, kānana e loaʻa ai ka 2,3, ʻo ka crude 5-trichloropyridine e hoʻoheheʻe ʻia ma lalo o ke kaomi hoʻemi e loaʻa ai ka huahana, ʻo ia ka paʻa melemele māmā me ka hua o 95% a me kahi maʻi o 98%. |
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