Influencing Factors of Low Concentration Cuprous' Measure

In order to establish the optimal measure conditions of low concentration cuprous content in acidic etcher solution to improve work efficiency,titrimetry with cerium sulfate was used to study the influence of several factors on measure results by single factors,and combine with orthogonal experiment,the best results was obtained of several Influence factors.The results show that the influence of titration time,the concentration of HCl,joined volume of FeCl3,measure temperature and sample volume on measure results are outstanding,but the content of Cu2+ is indistinctively;And measured the solution that concentration of cuprous is 5 g/L,and could finish in the 5 minutes and normal temperature,the relative error is-0.8% when the concentration of HCl is 7 mol/L,joined volume of FeCl3 in the measure process is 10 mL and sample volume of solution is 10 mL.