Color: demand is difficult to have obvious change 12 is copper or dipped

A 7 : 3 volume blend of DZ902 and DZ88 5-nonyl salicylaldoxime and 2-hydroxy-5-nonyl-acetophenone oxime DZ973N is compound copper solvent extraction reagent same as lix_973n, there is 70% Aldoxime and 30% Kldoxime content, it has strong extraction ability, also has good phase stripping ability, it can avoid third phase happened, so as to keep the extraction system running well.