YPyrogallol yog ib qho organic compound nrog cov mis C₆H₃(OH)₃. Nws yog dawb, dej-soluble khoom txawm hais tias cov qauv feem ntau yog xim av vim nws rhiab heev rau oxygen. Nws yog ib qho ntawm peb isomeric benzenetriols.
Alkaline pyrogallol yog dab tsi?
Qhia: Pyrogallol yog ib qho organic compound. … Cov nroj tsuag hauv dej Myriophyllum spicatum tsim cov pyrogallic acid. Thaum nyob rau hauv cov tshuaj alkaline, nws nqus pa oxygen los ntawm huab cua, tig xim av los ntawm cov tshuaj tsis muaj xim. Nws tuaj yeem siv rau hauv txoj kev no los xam cov pa oxygen hauv huab cua, tshwj xeeb ntawm kev siv lub tshuab orsat.
Koj ua li cas thiaj ua tau cov tshuaj alkaline pyrogallol?
YDissolve 20 g ntawm resublimed pyrogallol hauv dej, ntxiv10 ml ntawm conc. HCl thiab 2 g ntawm SnCl 2. 2H2O (ua kua hauv 5 ml ntawm conc. HCl), thiab dilute cov tshuaj nrog 0.1 M HCl rau 100 ml.
Pob pyrogallol nqus oxygen?
Pyrogallol yog thawj zaug tau txais nyob rau hauv 1786 los ntawm gallic acid, tau los ntawm galls thiab barks ntawm ntau yam ntoo. … Alkaline cov kev daws teeb meem ntawm pyrogallol nqus oxygen zoo thiab siv los txiav txim siab cov pa oxygen ntawm cov roj sib tov.
Yuav ua li cas nqus oxygen sai?
Alkaline tov ntawm tooj liab sulphate tsis tuaj yeem nqus pa. Cov tshuaj alkaline ntawm pyrogallol yog xim tsis muaj xim thiab thaum nqus oxygen, nws hloov mus rau xim av. Los ntawm cov lus piav qhia saum toj no, nws yog qhov tseeb tias pyrogallol tuaj yeem nqus tau oxygen sai duatus nqi tshaj li lwm cov compound.
