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titrimetric, for use with MCOLORTEST®
This MQuant® Total Hardness test (formally MColortest®) is suitable for the titrimetric determination using a convenient dropping bottle. It can be used in: •Groundwater, surface water, and seawater •Waters from aquaculture •Drinking water and mineral water •Swimming-pool water •Boiler water •Industrial water Method Calcium and magnesium ions react with an indicator to form a red complex compound. The indicator is released from this compound by titration with a solution of ethylenedinitrilotetraacetic acid disodium salt dihydrate (Titriplex® III). At the titration end-point the color changes to green. The total hardness is determined from the consumption of titration solution.
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