Mno2
Lub ntsiab tivthaiv ntawm ntuj mangance dioxide hmoov yog manganese dioxide (MNO2). Manganese Dioxide yog cov hmoov av dub nrog cov xim hlau luster. Nws yog insoluble hauv dej tab sis soluble hauv acid thiab ammonium ntsev cov kev daws teeb meem.
Tshuaj Tshuaj Muaj Zog
Manganese Dioxide yog ib tug oxidant uas tuaj yeem tso oxygen hauv cov tshuaj lom neeg. Piv txwv li, nws tuaj yeem hnov mob nrog sulfuric acid los tsim cov sulphur dioxide thiab dej. Cov tshuaj tiv thaiv kev tawm tsam yog: mno {2 + h2o4 → mnso {3}} h2o 2. Hauv cov tshuaj acidic, manganese dioxide tuaj yeem raug txo kom manganisese act, xws li reacroting nrog hydrochloric acid los tsim cov chlorine thiab manganese ions. Cov kev sib npaug ntawm cov tshuaj tiv thaiv yog: mno {{2 + 4 hc mncl {{8} CL2. Tsis tas li ntawd, manganese dioxide tseem tuaj yeem yauv redebox nrog qee cov hlau redple, xws li reacting nrog cov nyiaj ions los tsim cov nyiaj hlau thiab manganese ions.
Cov Khoom Siv Lub Cev
Qhov ntom ntawm manganese dioxide yog 5.026 g \/ cmà melting point yog 535 degree, thiab lub boiling point yog kwv yees li 2000 degree. Nws yog ruaj khov nyob rau hauv huab cua, tab sis tuaj yeem hnov mob nrog cov tshuaj xws li chlorine thiab hydrogen.
Kev npaj txoj kev
Muaj ntau txoj hauv kev rau kev npaj manganese dioxide, thiab cov txheej txheem feem ntau yog txoj kev siv tshuaj thiab lub cev. Cov tshuaj lom neeg feem ntau suav nrog oxidation, xws li siv acidic poov tshuaj permanganate yog oxidant; Lub cev lub cev yog kom decompose tebchaw xws li manganese sulfate lossis manganople carbonate ntawm qhov kub siab los ua kom muaj kev kub ntxhov los ntawm kev ua kom sov siab.
