摘要
硫铁矿中铅含量一般较低 (<1% ) ,容量分析难以满足分析精度的要求。根据我公司用矿情况 ,因熔融KNO3氧化矿中铅为 4价铅 ,在控制强酸性介质条件下 ,PbO2 能将Mn2 + 定量氧化为MnO4- ,通过测定MnO4- 的吸光值可求出Pb的含量 ,Pb含量在 0 .0 0 4～ 0 .0
Content of lead in melted KNO 3 oxidation ore was analyzed by measuring absorption value of MnO 4 -,which was produced from Mn 2+ oxidation by PbO 2 in strong acid medium.Results showed good linear correlation in the content range of Pb with 0.004 to 0.04g.
出处
《云南化工》
CAS
2001年第1期32-33,共2页
Yunnan Chemical Technology
