4-BROMO-3 5-DICHLOROPYRIDINE (CAS # 343781-45-3)

Taw qhia

4-Bromo-3,5-dichloropyridine yog cov organic compound nrog cov tshuaj formula C5H2BrCl2N. 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:

4-Bromo-3,5-dichloropyridine yog cov xim tsis muaj xim lossis daj daj daj nrog cov ntxhiab tsw tshwj xeeb. Nws cov ntsiab lus melting ntawm 80-82 ° C thiab nws qhov kub ntawm 289-290 ° C. Nws yog insoluble hauv dej ntawm qhov kub thiab txias, tab sis soluble hauv cov kuab tshuaj organic xws li ethanol thiab chloroform.

Siv:

4-Bromo-3,5-dichloropyridine yog siv dav hauv kev lag luam tshuaj. Nws yog ib qho tseem ceeb nruab nrab ntawm pyridine tebchaw thiab yuav siv tau nyob rau hauv synthesis ntawm lwm cov organic tebchaw thiab tshuaj. Nws muaj tshuaj lom neeg ruaj khov thiab ua haujlwm zoo, thiab tuaj yeem siv los ua catalyst, ligand, dye thiab tshuaj tua kab raw cov ntaub ntawv.

Txoj Kev Npaj:

Txoj kev npaj ntawm 4-Bromo-3,5-dichloropyridine feem ntau ua tiav los ntawm kev hloov pauv cov tshuaj pyridine. Txoj kev npaj siv feem ntau suav nrog cov tshuaj tiv thaiv pyridine nrog bromine thiab ferric chloride, thiab cov tshuaj tiv thaiv kev hloov pauv tau ua raws li qhov tsim nyog kom tau txais cov khoom lag luam. Cov txheej txheem kev npaj yuav tsum tau tswj cov tshuaj tiv thaiv kub, pH tus nqi thiab cov tshuaj tiv thaiv lub sij hawm thiab lwm yam tsis tau txais cov khoom purity siab.

Cov ntaub ntawv kev nyab xeeb:

4-Bromo-3,5-dichloropyridine yog ib qho chaw ruaj khov thiab muaj kev nyab xeeb nyob rau hauv cov xwm txheej dav dav, tab sis nws tseem yuav tsum tau ua tib zoo saib xyuas kev nyab xeeb. Nws tuaj yeem nkag mus rau hauv lub cev los ntawm kev nqus pa, kev sib cuag ntawm daim tawv nqaij thiab noj. Kev nqus pa ntawm cov pa roj thiab plua plav ntau tuaj yeem ua rau khaus, ua rau ua pa thiab qhov muag tsis pom kev. Kev sib cuag nrog daim tawv nqaij tuaj yeem ua rau liab, tingling thiab ua xua. Kev noj cov tshuaj sib xyaw ua ke tuaj yeem ua rau lub plab tsis xis nyob thiab muaj tshuaj lom. Yog li ntawd, cov cuab yeej tiv thaiv tsim nyog yuav tsum tau hnav thaum siv kom tsis txhob muaj kev sib cuag ncaj qha thiab nqus tau. Thaum muaj xwm txheej, kev kho mob xwm txheej ceev yuav tsum tau ua raws sijhawm thiab cov kws tshaj lij yuav tsum tau sab laj. Tsis tas li ntawd, nws yuav tsum tau muab cia rau hauv qhov chaw qhuav, qhov cua, kom deb ntawm hluav taws thiab oxidizing tus neeg sawv cev.