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Palladium, it couldn't be simpler. Probably the #simplest and most accessible way to obtain #palladium. Minimum #reagents and nothing unusual - dissolve in aqua regia, cement, and then etch the precipitate with an electrolyte. In this case, all foreign metals are etched, and the palladium remains at the bottom of the glass. An excellent #way to accumulate palladium for subsequent reprecipitation with normal reagents. #refining #palladium #cementation