Sigma-Aldrich Carbonate Hardness Test Mc

Specific Analyte(S)

carbonate, hydrogen carbonate

Quality Level

100

Compatibility

for use with MQUANT^®

Detection Method

titrimetric

Storage Temp.

15-25°C

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General Description

The MQuant^®Carbonate Hardness test (formally MColortest^®) uses a graduated syringe to determine carbonate hardness as a measure of the buffering capacity of water which can also be expressed as acid-binding capacity or total alkalinity.

Method
Hydrogen 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.

This test can be used in

• Surface water, seawater
• Drinking water and mineral water (after degassing)
• Aquarium water, waters from aquaculture
• Industrial water, process water
• Boiler and boiler feed water, cooling water

Analysis Note

Application test: conformsMCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, GermanyMQUANT is a registered trademark of Merck KGaA, Darmstadt, GermanyGHS02,GHS05H226 - H290P210 - P233 - P234 - P240 - P241 - P242