METHOD AND SOLUTION FOR PRODUCING GOLD COATING

摘要

Method for producing gold coatings, whereby a) palladium layers are first deposited on the work piece, b) an aqueous solution is used which contains at least one compound from the group of gold (I) ion and gold (III) ion containing compounds and additionally at least one organic compound from the formic acid group, from the aromatic carboxylic acids with chemical formula (I), whereby R1...R4 = H, alkyl, alkenyl, alkynyl, OH in addition to the salts, esters or amides of these compounds, c) the solution is adjusted with pH adjusting agents to a pH value ranging from 1 to 6, and d) the work piece is brought into contact with the solution.