连二硫酸金属盐和连二硫酸在电镀和金属精饰领域的应用(英文)

The utility of metal dithionates and dithionic acid in electroplating and metal finishing

在电镀溶液中使用连二硫酸和连二硫酸金属盐作为可溶性金属离子和电解质的来源具有潜在的应用。为有助于具有创新精神的配方研究者考虑采用诸如连二硫酸这种新型电解质,文章总结了连二硫酸盐电镀液近期的发展,用实例说明了连二硫酸盐在电镀液中的应用。众所周知,连二硫酸在强酸溶液中发生歧化反应,但这并不妨碍在适宜的条件下使用连二硫酸盐以及连二硫酸。(由于篇幅限制,有关连二硫酸及连二硫酸金属盐的化学性质、稳定性、制备方法等补充材料及学术综述、研究报告所涉及的参考文献均在本刊网站上详细全文发表,见http:／／www．plating．org／web／20060901．mht。)

Dithionic acid and metal dithionate salts are potentially useful sources of soluble metal ions and electrolytes for electroplating solutions. In the hope of helping innovative formulators contemplating the use of novel electrolytes like dithionic acid, this paper presents a brief summary of some recent developments in dithionate based electroplating. The utility of dithionates in electroplating is demonstrated with examples. It is well known ＂that dithionic acid disproportionates in strong acid solution, but this does not preclude the use of metal dithionates and even of dithionic acid under the right circumstances. （Access to relevant supplementary material covering the chemistry, stability and preparation of dithionic acid and metal dithionates is available online, see http：//www, plating, org/web/20060901, mht. References to academic reviews and investigations are also given with the supplementary material. ）