Alkalinity and pH is needed in many water treatment calculations, scale, corrosion, precipitation, oxidation, etc., yet the concept is often misunderstood and reliable methods to accurately measure alkalinity are scarce, especially when multiple weak acids are present. A new titration method that is based upon simultaneous analysis of the titration curve determined at fixed conditions, instead of complete reliance on the end points, has been developed and tested for a wide range of natural and synthetic waters. The implication of alkalinity, carboxylic acids, oxidation, and precipitation in scale and corrosion prediction is also discussed.

Subject
Acids, Water, Alkalinity, Acid concentration, Titration, Bicarbonates, Calcite, Partial pressures, Acidity, Constants, Formic acid, Brines, Acetic acid
Keywords:
Alkalinity, carboxylic acid, scale, and corrosion
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2004
Association for Materials Protection and Performance (AMPP)
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