重量法测定氰化亚金钾中的金

3,323304:,,,:;;:TG115.3+1:A:100522518(2008)0220060-02,,,BS5658-79[1]H2O2,()(),,()(0),,,,,,1,,,,:2KAu(CN)2+H2SO4()=AuCN+K2SO4+2HCN[2]2AuCN=2Au+CN22:;:40ml;;;:XS105,1/10g;:SX2-10-12,01000,3(1)1g(0.0001g)250ml(2)()5ml,,,1h,,(3)100ml,(4),SO2-4(5)800,(6)80030min,5060,4X:X(%)=M1-M0M100:M(g);M1(g);M0(g)30.2%,5,(1)[3]:,,16220084GOLDSCIENCEANDTECHNOLOGYVol.16No12Apr.20083:2007212218;:2008204202.:(1968-),,,14,,,,(2),,,,,,(3),,,,,(4)SO2-4,,3040,SO2-4,,,(5)[4],,,,,,(6),,,,(7)10min,,,(8)63,(%):68.2568.2568.26,[5](:GB/T15337-94):68.25%,7(1),,(2),,:[1]YS/T592-2006.[S].:,2006.[2],.()[M]1:,2003.[3]1[R],:,2006.[4].[M].:,2002.[5].[R].:,2004.DeterminationofGoldinInferiorGoldPotassiumofCyanidingbytheGravimet2ricMethodYEYueweiSuichangMiningCo.,LtdinZhejiangProvince,323304Suichang,Zhejiang,ChinaAbstract:Determinationofgoldininferiorgoldpotassiumofcyanidingbythegravimetricmethodiseconomic,simpleandpractical.Wegetthegoldbyheatingtheinferiorgoldpotassiumofcyanidinginacidicsolution,cooling,filte2ring,washingandweighing,wecancalculatethedeterminationofgoldininferiorgoldpotassiumofcyaniding.Thegravimetricmethodisbebeneficialtoelevatetheaccuracyofanalysisresults.Keywords:Inferiorgoldpotassiumofcyaniding;Determinationofgold;Gravimetricmethod16: