KF titration yog ib txoj kev titration classic uas siv coulometric lossis volumetric titration los txiav txim seb cov dej noo ntawm cov qauv. Karl Fischer (KF) reagents yog siv nyob rau hauv cov txheej txheem analytical tsim los ntawm chemist Karl Fischer kom ntsuas dej cov ntsiab lus ntawm gases, kua, thiab khib nyiab.
KF cov tshuaj tiv thaiv yog dab tsi?
Karl Fischer titration yog ib txoj hauv kev siv dav dav rau kev ntsuas cov dej hauv ntau yam khoom. Lub hauv paus ntsiab lus tom qab nws yog raws li Bunsen Reaction ntawm iodine thiab sulfur dioxide hauvib qho nruab nrab aqueous.
KF lub hauv paus ntsiab lus yog dab tsi?
Lub hauv paus ntsiab lus ntawm Karl Fischer titration yog ua tiav raws li cov tshuaj tiv thaiv oxidation ntawm sulfur dioxide thiab iodine. Dej reacts nrog sulfur dioxide thiab iodine los tsim hydrogen iodide thiab sulfur trioxide. Thaum tag nrho cov dej haus, nws mus txog qhov kawg.
Pyridine dawb KF reagent yog dab tsi?
Ib qho tseem ceeb uas tsis muaj pyridine Karl Fischer reagent muaj txiaj ntsig hauv qhov kev txiav txim siab ntawmdej, suav nrog tus neeg ua haujlwm yaj uas muaj sulfur dioxide thiab pyridine hloov pauv hauv Karl Fischer hnyav, thiab titrating Tus neeg sawv cev muaj iodine hauv Karl Fischer hnyav, nyob rau hauv qhov hloov pauv pyridine yog alkali lossis alkaline…
Karl Fischer yog dab tsi?
Karl Fischer (KF) titration yog cov tshuaj tiv thaiv redox uas siv haus dej thaum lub sijhawm tshuaj tiv thaivntsuas tus nqi dej hauv tus qauv. Nws yog cov txheej txheem siv rau kev txiav txim siab dej vim nws qhov tshwj xeeb, qhov tseeb thiab kev ntsuas ceev. Nws tshwm sim hauv cov kuab tshuaj organic.
