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khoom

6-Methylpyridine-2 4-diol (CAS # 3749-51-7)

Chemical Property:

Molecular Formula C6H7NO2
Molar Mass 125.13 Nws
Qhov ntom 1.269 ib
Melting Point 324-327 : kuv
Boling Point 310.0 ± 42.0 ° C (Tshaj tawm)
Flash Point 108.5°C dej
Vapor Siab 0.00241mmHg ntawm 25 ° C
Qhov tshwm sim Hmoov
Xim Beige
Qhov siab tshaj plaws wavelength (λmax) ['282nm(EtOH)(lit.)']
pKa 4.50 ± 1.00 (Kev kwv yees)
Kev cia khoom Inert cua, Chav Kub
Refractive Index 1.563 ib

Product Detail

Khoom cim npe

Hazard Cov Cim Xi-xaj
Risk Codes 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij.
Kev nyab xeeb piav qhia S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
HS Code 293339 0
Kev Ceeb Toom Irritant

 

Taw qhia

(1H)-ib (1H)-ib qho) yog cov organic compound nrog cov tshuaj formula C6H7NO2. Cov hauv qab no yog cov lus piav qhia ntawm nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:

 

Xwm:

(1H) - ib qho yog dawb crystalline khoom, tsw tsw. Nws ruaj khov ntawm qhov kub thiab txias, tab sis tuaj yeem decompose ntawm qhov kub thiab txias. Nws melting point ntawm 140-144 degrees Celsius.

 

Siv:

(1H)-ib qho muaj ntau yam kev siv hauv cov organic synthesis. Nws tuaj yeem siv los ua ib qho nruab nrab hauv cov organic synthesis rau kev sib txuas ntawm lwm cov tshuaj, xws li tshuaj, dyes thiab tshuaj tua kab. Tsis tas li ntawd, nws kuj tseem siv tau los ua cov hlau complexing reagent rau cov tshuaj tiv thaiv catalytic.

 

Txoj Kev Npaj:

Muaj ob txoj hauv kev tseem ceeb rau kev npaj (1H)-ib qho. Ib qho yog kev taw qhia ntawm pawg hydroxyl thiab ib pawg methyl rau hauv lub nplhaib pyridine los ntawm alkylation ntawm pawg hydroxyl ntawm picoline. Lwm txoj hauv kev yog ua kom muaj cov tshuaj tiv thaiv hydroxyl alkylation ntawm lub nplhaib pyridine los qhia txog pawg hydroxyl thiab pawg methyl. Txoj kev npaj tshwj xeeb tuaj yeem xaiv raws li cov kev xav tau tshwj xeeb thiab cov xwm txheej.

 

Cov ntaub ntawv kev nyab xeeb:

(1H) - ib qho tsis muaj tshuaj lom tab sis yuav tsum tau ceev faj. Thaum lub sijhawm ua haujlwm, yuav tsum tau saib xyuas kom tsis txhob muaj kev sib cuag ncaj qha rau ntawm daim tawv nqaij thiab qhov muag, thiab xyuas kom meej tias kev ua haujlwm yog nyob rau hauv qhov chaw zoo. Yog tias tsis sib cuag, yuav tsum tam sim ntawd yaug nrog dej thiab kho raws sijhawm. Tsis tas li ntawd, nws yuav tsum tau muab cia rau hauv lub thawv kaw, kom deb ntawm hluav taws thiab oxidizing tus neeg sawv cev.

 

Thov nco ntsoov tias thaum siv thiab tuav txhua yam tshuaj, koj yuav tsum ua raws li cov txheej txheem kuaj xyuas kom raug, thiab xa mus rau daim ntawv pov thawj kev nyab xeeb (SDS) ntawm cov khoom thiab cov kev taw qhia ntawm cov koom haum tshaj lij.


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