What is the difference between the alkalinity and pH of circulating water?
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What is the difference between the alkalinity and pH of circulating water? What do they refer to respectively? What are the values for each indicator?
Alkalinity represents the ability of water to react quantitatively with a strong acid standard solution until a certain pH value is reached. Total alkalinity should be the sum of carbonates and bicarbonates in water; however, during measurement, other substances in water that can react with acids are also counted as carbonates or bicarbonates. Total alkalinity is generally expressed as the content of calcium carbonate or calcium oxide, with the unit being mg/L. The pH value is the negative logarithm of the hydrogen ion concentration, and it has no units.