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huahana

2-Methoxy-5-nitro-4-picolin(CAS# 6635-90-1)

Waiwai Kemika:

ʻĀpana Molekala C7H8N2O3
Molar Mass 168.15
ʻO ka mānoanoa 1.247±0.06 g/cm3(Wānana ʻia)
Lae hehee 79.0 a i 83.0 °C
Lae Boling 280.3±35.0 °C(Wanamua)
Lae Flash 123.3°C
Hiki i ka wai Hiki ke hoʻoheheʻe ʻia i ka wai.
Ka hoʻoheheʻe Chloroform (Liʻiliʻi), Methanol (Liʻiliʻi)
Puʻupuʻu mahu 0.00649mmHg ma 25°C
Ka nana aku Paʻa like keʻokeʻo
kala kala Mele Melemele a Pale Beige
pKa 0.02±0.18(Wanamua)
Kūlana Waihona Hoʻopaʻa ʻia i loko o kahi maloʻo, lumi wela
Hōʻike Hōʻike 1.541
MDL MFCD03095075

Huahana Huahana

Huahana Huahana

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.
R22 – Poino ke aleia
Ka wehewehe palekana S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka
S39 - Hoʻohana i ka pale maka / maka.
WGK Kelemānia 3
Papa Hazard HOOLAHA

 

Hoʻolauna

He mea hoʻohuihui olaola me ke ʻano kemika C8H9NO3. Eia ka wehewehe ʻana o kona ʻano, hoʻohana, hoʻomākaukau a me ka ʻike palekana.

 

ʻAno:

-Ke ʻano: He kala ʻole ia i ka paʻa kristal melemele māmā.

-Solubility: Aneane hiki ʻole ke hoʻoheheʻe ʻia i ka wai, akā ʻoi aku ka maikaʻi o ka solubility i nā mea hoʻoheheʻe organik e like me ka ethanol a me ka dimethylformamide.

-Ka helu heheʻe: ʻO ka helu heheʻe ma kahi o 72-75 degere Celsius.

 

E hoʻohana:

-Ke kimeka synthesis: He mea hoʻohana maʻamau ia e hiki ke hoʻohana ʻia e synthesize i nā mea hoʻohui organik ʻē aʻe.

-Nā noiʻi: Hiki ke hoʻohana ʻia no ka hoʻololi ʻana i ka synthesis organik a me nā noiʻi ʻē aʻe.

 

Kaʻina hoʻomākaukau:

Hiki ke hana ʻia ka Synthesis ma o nā pae aʻe:

1. ʻO ka mua, loaʻa ka 2-methyloxy-5-nitropyridine ma ka hana ʻana i ka 2-methyloxy-5-nitropyridine me ka waikawa nitric.

2. A laila e hoʻopili i ka 2-methoxy-5-nitropyridine me kahi methylating reagent (e like me ka methyl sodium iodide) e loaʻa ai ka huahana hope.

 

ʻIke palekana:

Ua kaupalena ʻia ka ʻikepili palekana, akā hiki ke make i ke kanaka a me ke kaiapuni. I ka wā e hoʻohana ai, pono e hahai i ka hana hoʻokolohua kūpono, a e lawe i nā hana pale pilikino e pono ai, e like me ke komo ʻana i nā aniani pale a me nā mīkina lima. Eia kekahi, pono e mālama ʻia ka mea hoʻohui a hoʻokuʻu pono ʻia i mea e pale ai i ka haumia o ke kaiapuni.


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