Spectrochemical Analysis of Palladium and Platinum Sponge

Spectrographic methods for the analysis of minor constituents such as platinum-group metals, gold, silver, and silica in palladium and platinum refinery sponge are described. These involve the conversion of the sponge metals to the black form by reduction with high purity aluminum filings in either acid or alkaline media. Standards of known composition are prepared in the same manner from either refinery or spectrographically standardized sponge metals.
Keywords: Additions, Alkaline Rhodium . . . . . . . . . . ., aqua regia, Palladium Black, Six Platinum Metals, SPONGE Lor, analysis, Gold, metals, Platinum, Reduction, Standards
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