complexant

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成中,可以置换覆不同锡质量分数铜- 锡合金层,工艺可替代氰化物预铜,消除氰化物污染,是实现洁生产措施之一。