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1、高三学习计划高三学习计划书Ifasubstancethatisnoteasilywashedbywater,itshouldbetreateddifferently.TocleantheinstrumentdirtCleaningmethodTheprincipleofYou'vedonetheKMnO4testtubeMn02Concentratedhydrochloricacid,heatingTheMn02reactswiththestrongHC1toproducethesolubleMnC12Abeakerofiodinesublimationiodinealco
2、holIodineissolubleinalcoho1.Long-termstorageofthereagentbottleofFeC13solutionFe(OH)3HydrochloricacidFe(OH)3reactswithhydrochloricacidThetesttubewasdoneinthesilvermirrorexperimentsilverDiluteHN03,heatingAgandHN03haveaREDOXreactionAtesttubeforoilandgreaseOilpollutionHotpurelyebathTheoilishyd
3、rolyzedbythepurelyeofhotoilTheheatofthematerialHeatingmodeOptimalpointToadapttothescopeofMattersneedingattentionDirectheatingThetemperaturerisesfastandthehighertemperatureiseasilyobtainedPorcelain,metalorsmall,thinglassinstrumentssuchastesttubesTheoutsideoftheglassinstrumentisdryHeatingthe
4、asbestosnetworkTheheatismoreuniformandthetemperatureismoremanageableLargeglassreactor(suchasbeaker,flask),etcSameasaboveHotbath(waterbath,oilbath,sandbath,etc・)TheheatisuniformandthereactionisflatAstable,upperboundtemperature(asinthecaseofnitrobenzene,whichrequiresastrictcontrolovertempera
5、ture(forexample,inthecaseofnitrobenzene)・AmixtureoflowboilingpointsSelecthotbathaccordingtodifferenttemperature・TheheatinglimittemperatureistheboilingpointofthehotbathmediumTheinspectionofthegastightnessAlltheexperimentaldevicesthathavetheconductiongasmustbecheckedforairtightnessafterassem
6、bly.Simpledevicetesttightnessmethod:withbothhandstocoveryourflaskoratesttube,catheterintothewater,usehandheatexpansionoftheairincontainer(orusingalcoholburner),theairinthecontainerfromcathetermouthformedbubbles,handle(alcohollamp)・Afterawhile,thewaterrisesalongthecatheter,formingasmallcolu
7、mnofwater,indicatingthatthedeviceisnotleaky.Note:ifyouwanttochecktheairtightdevice,itisanairtightnessdevice・First,thedeviceistreatedasanairtightsystemtobetested.BeingfilteredApplication:theseparationofinsolublesolidsubstanceandliquidsubstanceMaininstruments:fu
