Analysis Note

Application test: conforms

General description

Method: titrimetric with dropping bottle MQuant^®

Carbonate hardness is a measure of the buffering capacity of water which can also be expressed as acid-binding capacity or total alkalinity. This MQuant^® Carbonate Hardness test (formally MColortest^®) is suitable for the titrimetric determination using a convenient dropping bottle. MethodHydrogen carbonate and carbonate ions are titrated with hydrochloric acid against a mixed indicator. At the titration end-point (at pH 4.3) the color changes to red. The carbonate hardness (acid capacity) is determined from the consumption of titration solution.

The Carbonate Hardness Test determines carbonate hardness as a measure of the buffering capacity of water which can also be expressed as acid-binding capacity or total alkalinity.

Legal Information

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

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

Packaging

50 tests in Plastic box