RESEARCH AND DEVELOPMENT IN ION EXCHANGER METHODS
CHEMICAL CORP SPRINGFIELD MASS
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Methods of determining the contamination of chromium plating solutions with chromium 3 ions, iron and sulfates are discussed. These include conductivity, pH, specific gravity, viscosity, optical density measurements, and precipitation. Specific recommendations for improved column operation and selection of Amberlite 200 as the resin for the ion exchange column at the Springfield Armory are reported.