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5-Bromo-2-3-dichloropyridine(CAS#97966-00-2)

Waiwai Kemika:

ʻĀpana Molekala C5H2BrCl2N
Molar Mass 226.89
ʻO ka mānoanoa 1.848±0.06 g/cm3 (Wānana ʻia)
Lae hehee 35-37°C
Lae Boling 55-65 C
Lae Flash 95.076°C
ʻO ke ʻano o ka mahu 0.084mmHg ma 25°C
pKa -3.02±0.10(Wanamua)
Kūlana Waihona ma lalo o ke kinoea inert (nitrogen a i ʻole Argon) ma 2-8 °C
Hōʻike Hōʻike 1.597

Huahana Huahana

Huahana Huahana

Pilikia a palekana

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.
R25 - He mea ʻawaʻawa inā ʻai ʻia
Ka wehewehe palekana S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
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.)
S39 - Hoʻohana i ka pale maka / maka.

 

Hoʻolauna

ʻO ka 5-bromo-2,3-dichloropyridine he mea hoʻohuihui mea ola me ke ʻano kemika C5H2BrCl2N. Eia ka wehewehe ʻana i nā waiwai, hoʻohana, hoʻomākaukau a me ka ʻike palekana o kēia pūhui: Nature:
-Nani: ʻAʻohe kala i ka aniani melemele māmā a i ʻole ka pauka crystalline
-Ka helu heheʻe: 62-65°C
-Pila paila: 248°C
-Ka mānoanoa: 1.88g/cm³
- ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe ʻia i nā mea hoʻoheheʻe organik (e like me ka chloroform, methanol, ether, etc.)

E hoʻohana:
- 5-bromo-2,3-dichloropyridine he mea koʻikoʻi i waena o ka synthesis organik.
-Hiki ke hoʻohana ʻia e hoʻomākaukau i nā pūhui i hoʻopaʻa ʻia me nā isotopes kalapona radioactive kinoea.

Kaʻina hoʻomākaukau:
ʻO ke ʻano o ka hoʻomākaukau ʻana o -5-bromo-2,3-dichloropyridine e loaʻa pinepine ʻia e ka bromination substitution reaction o 2,3-dichloro-5-nitropyridine. ʻO ke ʻano kikoʻī ʻo ka hana mua ʻana i ka 2,3-dichloro-5-nitropyridine me ka phosphorus trichloride, a laila e hoʻokō i ka pane hoʻololi bromination me ka bromine.

ʻIke palekana:
- ʻO 5-bromo-2,3-dichloropyridine kahi hui kūlohelohe a pono e hahai i nā kaʻina hana palekana i ka wā e lawelawe ai a hoʻohana.
-He mea hoʻonāukiuki paha ia i ka maka, ka ʻili a me ka ʻōnaehana hanu, no laila e hoʻokomo i nā maka aniani, nā mīkina lima a me ka pale.
- E ʻoluʻolu e mālama pono iā ia, mai ke ahi, ka wela a me ka oxidant, a pale i ka hoʻopili ʻana me ka waikawa ikaika a me ka alkali.
-Ina o ka inhalation a i ole ia e pili ana, e hoomaemae koke i ka wahi i pilikia a e imi i ke kokua kino.


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