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huahana

3-Bromo-2-methylpyridine(CAS# 38749-79-0)

Waiwai Kemika:

ʻĀpana Molekala C6H6BrN
Molar Mass 172.02
ʻO ka mānoanoa 1.495
Lae Boling 76°C/17mm
Lae Flash 174°F
Puʻupuʻu mahu 1.27mmHg ma 25°C
Ka nana aku Waiwai
kala kala Akaka, kala ʻole a ʻeleʻele
pKa 3.59±0.10(Wanamua)
Kūlana Waihona Ka lewa inert, ka wela lumi
Hōʻike Hōʻike 1.5604
MDL MFCD00191224
Na Waiwai Kino a Kimia Māmā: 1.549
Hoʻohana Hiki ke hoʻololi i ka hopena NBS-dibromination i hoʻomaka ʻia e ka peroxide a me ka hopena hydrolysis ma hope mai i ka pyridine formaldehyde.

Huahana Huahana

Huahana Huahana

Nā Code Risk R22 – Poino ke aleia
R37/38 – Hoʻonanea i ka ʻōnaehana hanu a me ka ʻili.
R41 – Ka pilikia o ka poino nui i na maka
R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili.
R20/21/22 – He pōʻino ma ka inhalation, pili me ka ʻili a inā ale 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.
S36/39 -
S36 – E komo i nā lole pale kūpono.
S36/37/39 – E hoʻohana i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka.
WGK Kelemānia 3
HS Code 29333990
Papa Hazard HOOLAHA

 

Hoʻolauna

ʻO ka 2-methyl-3-bromopyridine kahi hui kūlohelohe. ʻO kēia ka hoʻolauna ʻana i nā waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana o ka pūhui:

 

ʻAno maikaʻi:

ʻO 2-Methyl-3-bromopyridine he wai kala ʻole me kahi ʻala like me ka pyridine.

 

E hoʻohana:

Hoʻohana pinepine ʻia ʻo 2-Methyl-3-bromopyridine ma ke ʻano he reagent a waena i ka synthesis organik.

 

Hanana:

Ma keʻano laulā, hiki ke hoʻokō ʻia ka hoʻomākaukau ʻana o 2-methyl-3-bromopyridine e ka hopena bromination o pyridine. ʻO ke ʻano hana synthesis maʻamau ka hana ʻana i ka 2-methylpyridine me ka bromine i loko o kahi mea hoʻoheheʻe kūlohelohe e like me ka chloroform, me ka hoʻohana ʻana i ka sodium hydroxide ma ke ʻano he catalyst.

 

ʻIke palekana: He mea ʻawaʻawa ia e hōʻeha a hōʻino i ka ʻōnaehana hanu kanaka, ka ʻili, a me nā maka. Pono e ʻaʻahu ʻia nā mea pale ponoʻī e like me nā mīkina lima kemika, nā maka aniani, a me nā lole pale i ka wā e hoʻohana ai a pono e pale ʻia ka hoʻopili pololei ʻana. I ka wā o ka mālama ʻana a me ka mālama ʻana, pono ia e hoʻolohe i ke ahi a me ka mālamalama, a mālama pono i ke ahi a me nā kumu wela. ʻO ka mea nui, e hahai i nā kaʻina hana palekana no nā kemika a hahai i nā lula pili.


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