TARNISH RESISTANT ARTICLE, PREPARATION, MANUFACTURE AND METHODS OF USE OF SAME

摘要

The present invention is directed to an article having a metal composition (21), preferably silver or copper, and a coating (37) which is resistant to tarnishing due to being coated with a thin, robust, self-assembled monolayer which when applied to an article or substrate is non-toxic, flexible, and solderable. The method of the present invention includes an organic washing step and an etching step with sulfuric acid or its equivalent prior to alkylthiolation.