KMnO4 spontaneously txo nyob rau hauv ib qho yooj yim tov rau ntsuab-xim poov tshuaj manganate, qhov twg manganese nyob rau hauv lub +6 oxidation xeev.
Koj ua li cas tus qauv kev daws teeb meem KMnO4?
Potassium Permanganate daws Standardization
- Rau 25.0 ml ntawm cov tshuaj nyob rau hauv ib khob-stoppered hwj ntxiv 2 g ntawm poov tshuaj iodide, ua raws li 10 ml ntawm 1 M sulfuric acid.
- Titrate cov liberated iodine nrog 0.1 M sodium thiosulphate, siv 3 ml ntawm cov hmoov txhuv nplej siab, ntxiv rau qhov kawg ntawm titration, ua qhov taw qhia.
YVim li cas cov poov tshuaj permanganate yog tus qauv?
Potassium permanganate yog tus neeg sawv cev oxidizing. Nws tuaj yeem khaws nws cov concentration nyob rau lub sijhawm ntev nyob rau hauv qhov chaw cia khoom kom zoo. Cov tshuaj tiv thaiv ntawm poov tshuaj permanganate hauv kev daws yog nrawm. … Raws li poov tshuaj permanganate tsis yog tus qauv tseem ceeb nws tuaj yeem ua qauv los ntawm kev siv sodium oxalate lossis oxalic acid.
Qhov ntsuas twg yog siv hauv Standardization ntawm KMnO4?
In burette – KMnO4 tov. Nyob rau hauv lub khob conical - 10ml ntawm oxalic acid + sulfuric acid . Indicator – Tus taw qhia tus kheej (KMnO4)
Y Yuav ua li cas hom reagent yog poov tshuaj manganate?
Cov tshuaj reagent yog
cov tshuaj alkaline ntawm potassium permanganate. Cov tshuaj tiv thaiv nrog ob lossis peb daim ntawv cog lus (-C=C- lossis -C≡C-) ua rau cov xim ploj mus ntawm purplish-liab mus rau xim av. Aldehydes thiab formic acid (thiab formates) kuj muab kev kuaj pom zoo. Qhov kev xeem yog qub.
