complexant

1.Metal complexants such as ferrous complexant and cobaltic complexant are common used in this process.

相络法常用的金属络有亚铁络和钴络。

2.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、稳定组成的溶中,以置换镀覆不同锡质量分数的铜- 锡金镀层,其替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。