Hach, 2241832, Calcium/Magnesium Indicator Solution, 100 mL MDB
Catalog Number: 2241832
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Pack Size100 mL
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Answer:The indicator is calmagite, a color-forming reagent that responds to calcium and magnesium under alkaline test conditions.
Answer:EGTA selectively complexes calcium, while EDTA complexes calcium and magnesium, enabling separate determinations.
Answer:The indicator comes in a 100 mL measuring-dropper bottle (MDB).
Hach Calcium/Magnesium Indicator Solution is a liquid calmagite indicator reagent for colorimetric measurement of calcium and magnesium hardness in water. In the alkaline test medium, the indicator forms a colored complex with calcium and magnesium ions. EGTA selectively complexes calcium, while EDTA complexes calcium and magnesium, allowing the two components to be resolved through sequential color measurements. The 100 mL measuring-dropper bottle (MDB) is designed for controlled reagent addition in the associated Hach hardness procedure. This indicator is one component of a multireagent test method and should be used with the specified alkali and chelating solutions. It does not measure total hardness independently of the prescribed procedure.
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