MilliporeSigma
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1.08312

Supelco

Total Hardness Test

titrimetric, for use with MCOLORTEST®

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specific analyte(s)

calcium, magnesium

Quality Level

compatibility

for use with MCOLORTEST®

detection method

titrimetric

storage temp.

15-25°C

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This Item
1.111041.080471.10025
Total Hardness Test titrimetric, for use with MCOLORTEST®

Supelco

1.08312

Total Hardness Test

Total Hardness Test titrimetric, for use with MQUANT®

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1.11104

Total Hardness Test

Total Hardness Test titrimetric, for use with MQUANT®

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1.08047

Total Hardness Test

Total Hardness Test colorimetric, water hardness 3-21 °d, water hardness 4-26 °e, water hardness 5-37 °f, MQuant®

Supelco

1.10025

Total Hardness Test

detection method

titrimetric

detection method

titrimetric

detection method

titrimetric

detection method

colorimetric

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

compatibility

for use with MCOLORTEST®

compatibility

for use with MQUANT®

compatibility

for use with MQUANT®

compatibility

-

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

General description

Method: titrimetric with dropping bottle MColortest®
The test measures the content of salts of the alkaline earth metals calcium, magnesium, strontium and barium in groundwater and surface water, drinking water, mineral water and boiler water.
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.

Legal Information

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 1


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