三草酸合铁(ⅲ)酸钾的制备和组成分析探究

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1、《化学研究创新实验》论文三草酸合铁(III)酸钾的制备和组成分析探究专业应用化学班级应用化学2010-1班姓名张鑫鑫小组成员邬斌王海洋张鑫鑫组长张鑫鑫中国矿业大学2014.01.05中国矿业大学2014届本科生创新实验（论文）三草酸合铁(Ⅲ)酸钾的制备和组成分析探究摘要在三草酸合铁(Ⅲ)酸钾合成实验中，原实验操作步骤较笼统操作条件控制不严格，导致实验只能得到较少的产物，有些甚至无法得到晶体，或者得到白色晶体，实验的重现性也较差，本文对三草酸合铁(Ⅲ)酸钾合成的实验条件进行了深入探索，改善了实验结果的重现性，提

2、高了产品的产率，获得了优化条件：(1)Fe(OH)3制备中水浴加热温度；（2）过量H2O2的去除时间；（3）KHC2O4溶解Fe(OH)3水浴温度；（4）KHC2O4溶液溶解Fe(OH)3的加入方式；（5）KHC2O4溶液用量；（6）晶体析出条件，优化后制备的产品呈大颗粒翠绿色晶体。为后续的高锰酸钾滴定、无机定性分析、电导率测定、磁化率测定、红外光谱测定、光敏性实验等分析实验打下了良好的基础。得到有关测定数据与理论值相吻合。关键词：三草酸合铁(Ⅲ)酸钾；制备；组成分析；探究AbstractThetraditi

3、onalexperimentinthepreparationofpotassiumferrioxalatehassomedefects,suchascursoryprocessandundemandingoperationconditions.Itcausesthefollowingproblems.Firstly,weobtainlimitedyields.Secondly,sometimesnolygetwhitecrystalsorevernothing.Thirdly,thereproducibili

4、tyoftheexpereimentisdissatisfying.Thepapercarriesoutthedetailedanalysisontheexperimentalconditionsofsynthesizingpotassiumferrioxalate.andincreasestheyieldsandoptimizestheresults.Emeraldgraincrystalscanbeobtainedatahighrateofyieldaby:(1)thetemperatureduringp

5、reparation ofFe(OH)3;(2)thetimetoeliminatetheremainingH2O2；（3）ThesolubolitytemperatureofFe(OH)3；（4）thewayofaddingKHC2O4intoFe(OH)3；（5）theconsumptionofKHC2O4;(6)theconditionsofthecrystalprecipitation.Wecanobtaintheemraldcrystalgrainsinimprovedprocess.Itcould

6、 lay the groundwork forPotassiumPermanganatetitration, inorganicqualitativeanalysis,thedeterminationofelectricalconductivity,thedeterminationofmagneticsusceptibility,infraredspectrumanalysis, photosensitive experiment analysisandsoon. Theresultsareidentical

7、withthetheoreticalfigures.Keywords:potassiumferrioxalate;preparation;compositiondetermination;experimentalresearchⅠ中国矿业大学2014届本科生创新实验（论文）目录摘要···················································································IABSTRACT························

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