Metal Finishing Guide Book

2013

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Bath Type Parameter Analytical Method Soak cleaner* pH Electrode, pH paper Total alkalinity CO3 and HCO3 Acid-base titration – Acid-base titration, pH titration Electrode, pH paper Total alkalinity Acid-base titration CO3– – and HCO3– Acid-base titration, pH titration –– Electro-cleaner* pH *Emulsified oils should be removed occasionally from these tanks. Table 2: Analysis of Soak Cleaners and Electro-cleaners Bath Type Sulfate Titrations, turbidity (N/A) AgNO3 titration, potentiometry Boric acid Acid-base titration/mannitol pH Electrometric pH electrode Ni EDTA titration, AA, ICP, XRF Chloride AgNO3 titration, potentiometry Boric acid Acid-base titration/mannitol pH Electrometric pH electrode Ni EDTA titration, AA, ICP, XRF Chloride AgNO3 titration, potentiometry pH Electrometric pH electrode Ni Titration Hypophosphite Redox titration Orthophosphite Redox titration Inorganic additive Electroless nickel EDTA titration, AA, ICP, XRF Chloride Woods' nickel Electrometric pH electrode Ni Sulfamate nickel Analytical Method pH Watts' nickel Parameters Polarography, CSV, IC Table 3: Analysis of Nickel Baths for Various Parameters 460

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