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huahana

3 5-Dichloropyridine(CAS# 2457-47-8)

Waiwai Kemika:

ʻĀpana Molekala C5H3Cl2N
Molar Mass 147.99
ʻO ka mānoanoa 1.39
Lae hehee 65-67 °C (māmā)
Lae Boling 178 °C
Lae Flash >110°C
Ka hoʻoheheʻe Chloroform, Ethyl Acetate
Puʻupuʻu mahu 1.79E-14mmHg ma 25°C
Ka nana aku Pauda
kala kala Keʻokeʻo a i ʻole-Keʻokeʻo Haʻahaʻa heheʻe
BRN 1973
pKa 0.32±0.10(Wanamua)
Kūlana Waihona Ka lewa inert, ka wela lumi
Hōʻike Hōʻike 1.777
MDL MFCD00006376
Na Waiwai Kino a Kimia Pauda keʻokeʻo

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.
Ka wehewehe palekana S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S39 - Hoʻohana i ka pale maka / maka.
S36 – E komo i nā lole pale kūpono.
UN ID UN2811
WGK Kelemānia 3
RTECS US8575000
HS Code 29333990
Nānā Hazard Hoʻonanea
Papa Hazard 6.1

 

Hoʻolauna

ʻO 3,5-Dichloropyridine kahi mea hoʻohui. He wai waihoʻoluʻu ʻole me ka ʻala ikaika.

Hoʻopili koke ʻo 3,5-dichloropyridine me ka sodium hydroxide e hana i ke kinoea hydrogen chloride ʻawaʻawa.

 

ʻO 3,5-Dichloropyridine ka nui o nā noi i ke kaʻina hana synthesis. Hiki ke hoʻohana ʻia ma ke ʻano he mea hoʻohaʻahaʻa nui no ka synthesis o nā ketones.

 

Nui nā ala e hoʻomākaukau ai i ka 3,5-dichloropyridine. Loaʻa ke ʻano hana maʻamau ma ka hana ʻana i ka pyridine me ke kinoea chlorine. ʻO nā ʻanuʻu kikoʻī he: ka hoʻokomo ʻana i ke kinoea chlorine i loko o kahi hopena i loaʻa ka pyridine ma lalo o nā kūlana hopena kūpono. Ma hope o ka hopena, ua hoʻomaʻemaʻe ʻia ka huahana 3,5-dichloropyridine e ka distillation.

 

Ke hoʻohana nei i ka 3,5-dichloropyridine, pono e hahai ʻia nā kaʻina hana palekana e pili ana a pono e hoʻohana ʻia nā mea pale. E hōʻalo i ka pili ʻana me ka ʻili, nā maka, a me nā membrane mucous. Pono e mālama i ka pale ʻana i ka hana ʻana me nā mea kemika ʻē aʻe i ka wā e lawelawe ai a mālama ʻia e pale aku i nā pōʻino. I ka wā e mālama ai, pono e mālama ʻia ka 3,5-dichloropyridine i loko o kahi pahu hau a waiho ʻia i kahi maloʻo a maloʻo.


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