General description

Method: titrimetric with dropping bottle MQuant^®

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 waterMethodCalcium 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.

Legal Information

MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany

Titriplex is a registered trademark of Merck KGaA, Darmstadt, Germany

MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany

Packaging

100 tests in Plastic box