《工业分析 Industrial Analysis》课件-钢铁中硅的测定方法介绍（双语）

项目六：钢铁分析任务六：钢铁中硅的测定钢铁中硅的测定方法介绍课程：工业分析中文Scenario6:SteelanalysisTask6:DeterminationofsiliconinsteelIntroductiontothedeterminationmethodofsiliconinsteelCourse:IndustrialAnalysisEglish一、钢铁中硅的作用钢铁中硅以固溶体、FeSi、FeMnSi等形式存在固溶于铁中可提高铁素体的硬度和强度能提高钢的抗氧性、腐蚀性含量过高使钢的塑性、韧性降低中文一、TheroleofsiliconinsteelSiliconinsteelexistsintheformofsolidsolution,FeSi,FeMnSi,etcSilicondissolvedinironcanimprovethehardnessandstrengthofferriteSiliconcanimprovetheoxygenresistanceandcorrosionresistanceofsteelExcessivesiliconcontentcanreducetheplasticityandtoughnessofsteelEglish氟硅酸钾滴定法硅钼酸-喹啉法二、硅的测定方法重量法分光光度法滴定法中文Potassiumfluorosilicatetitrationmethod二、MeasurementmethodgravimetricmethodspectrophotometrytitrationSilicomolybdicacidquinolinemethodEglish1、重量法Si硅酸强酸如盐酸、硫酸、高氯酸中加热脱水，称量用动物胶加速硅酸胶体凝聚，过滤，称重中文1、gravimetricmethodSisilicicacidAddstrongacidssuchashydrochloricacid,sulfuricacid,andperchloricacid,heattodehydratethesilicaacid,andweighitAddanimalgluetoacceleratethecoagulation,filtration,andweighingofsilicagelEglish2、分光光度法硅钼蓝硅钼杂多酸钼酸硅酸酸性还原剂分光光度法测定中文2、spectrophotometrySiliconmolybdenumblueSiliconmolybdenumheteropolyacidmolybdicacidsilicicacidacidityreducingagentDeterminationbyspectrophotometryEglish强酸性加入热水水解，生成HFNaOH滴定HFSiF-、K+K2SiF6沉淀3、滴定法-氟硅酸钾法中文strongacidAddhotwatertohydrolyzeprecipitate,andgenerateHFTitrationofHFwithNaOHSiF-、K+K2SiF6precipitate3、titration-PotassiumfluorosilicatetitrationmethodEglish过量NaOH用HCl滴定硅钼酸喹啉沉淀加入过量NaOH使沉淀溶解喹啉钼酸铵3、滴定法-硅钼酸喹啉法Si中文TitrationofexcessNaOHwithHClQuinolinesilicomolybdateprecipitationAddexcessNaOHtodissolvetheprecipit