On August 1, 1994, Yuasa, Makoto; Tsutsumi, Takeo; Miyadate, Yasuo; Ohtani, Yutaka; Sekine, Isao; Kuzushima, Toshio published an article.Electric Literature of 636-73-7 The title of the article was Synergistic effect of organic additives and pulse-current plating in a gold electrodeposition acid bath and gold plating film corrosion resistance. And the article contained the following:
Effects of addition of pyridine derivatives such as aminopyridines and pyridinesulfonic acids into a citric acid-base Au electrodeposition solution were discussed. Using both pyridine additives and pulse current effectively lowered porosity and increased deposition efficiency compared to using only d.c. or pulse current and both d.c. and pyridine additives. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Electric Literature of 636-73-7
The Article related to pulse current gold electrodeposition pyridine additive, Electrochemistry: Industrial Cathodic Processes and other aspects.Electric Literature of 636-73-7