5-Bromo-2-3-dichloropyridine（CAS#97966-00-2）
Morearea me te Haumaru
| Waehere Morearea | R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri. R41 – He kino kino ki nga kanohi R37/38 – He whakapataritari ki te punaha manawa me te kiri. R25 – He paitini ki te horomia |
| Whakaahuatanga Haumaru | S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora. S45 – Ki te puta he aitua, ki te kore ranei koe e pai, rapu wawe i nga tohutohu hauora (whakaatuhia te tapanga ina taea.) S39 – Mau whakamarumaru kanohi / kanohi. |
Kupu Whakataki
-Te ahua: Kore tae ki te karaehe kowhai marama he paura tioata ranei
-Ira whakarewa: 62-65°C
-Kohuatanga: 248°C
-Kuaiti: 1.88g/cm³
-kare e rewa i roto i te wai, ka whakarewahia i roto i nga whakarewa waro (penei i te chloroform, methanol, ether, etc.)
Whakamahia:
- Ko te 5-bromo-2,3-dichloropyridine he takawaenga nui i roto i te whakahiato waro.
-Ka taea te whakamahi ki te whakareri i nga puhui kua tapaina kei roto i nga momo waro iraruke hau.
Tikanga Whakaritenga:
Ko te tikanga whakarite o -5-bromo-2,3-dichloropyridine te nuinga o te wa ka whiwhi i te tauhohenga whakakapinga bromination o 2,3-dichloro-5-nitropyridine. Ko te tikanga motuhake ko te tauhohe tuatahi ki te 2,3-dichloro-5-nitropyridine me te ūkuikui trichloride, katahi ka whakahaere i te tauhohenga whakakapinga bromination me te bromine.
Mōhiohio Haumaru:
- Ko te 5-bromo-2,3-dichloropyridine he puhui pararopi me whai i nga tikanga whakahaere haumaru ina whakahaere me te whakamahi.
-Kei te whakapataritari ki nga kanohi, ki te kiri me te punaha manawa, no reira mau motiti, karapu me te kanohi kanohi.
-Tena koa kia pai te pupuri, mawehe atu i te ahi, te wera me te waikura, me te karo i te whakapiri ki te waikawa kaha me te alkali.
-I te mea ka ngotea, ka pa aitua ranei, horoi tonu i te waahi kua pangia ka rapu awhina hauora.
