ELECTROLYTIC COATING BATHS FOR OBTAINING WHITE DEPOSITS OF METALLIC PALLADIUM, CONTAINING A SOURCE OF PALLADIUM, AN AMMONIUM SALT, AN ORGANIC BRIGHTNESS AGENT AND AMMONIA

摘要

P ELECTROLYTIC COATING BATHS ARE PARTICULARLY SUITABLE FOR OBTAINING WHITE DEPOSITS OF METALLIC PALLADIUM PROVIDED WITH METALLIC PALLADIUM DIAMINODINITRITE PROVIDED WITH PALLADIUM DIAMINODINITRITE AND THE CONDUCTIVE SALT OF PEUMPERS AMMONIUM; TO ENSURE THE DESIRED WHITENESS DEGREE, THE BATH MUST ALSO CONTAIN AMMONIA AND AN ORGANIC BRIGHTENER; IT IS ALSO IMPORTANT THAT THE BATH HAS A PH OF AT LEAST 8 DURING COATING OPERATIONS AND A BUFFER CAN BE USED TO MAINTAIN THE PH RANGE DESIRED BETWEEN 8 AND 10. /P