1.08048

Carbonate Hardness Test

for use with MQUANT^®

• Synonym(s): Carbonate Hardness Visual Test Kit
• UNSPSC Code: 41116116
• NACRES: NA.24

Properties

• specific analyte(s): carbonate, hydrogen carbonate
• Quality Level: 100
• compatibility: for use with MQUANT^®
• detection method: titrimetric
• storage temp.: 15-25°C

Description

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: conforms

Legal Information

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

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

Safety Information

• Pictograms: GHS02,GHS05
• Signal Word: Warning
• Hazard Statements: H226 - H290
• Precautionary Statements: P210 - P233 - P234 - P240 - P241 - P242
• Hazard Classifications: Flam. Liq. 3 - Met. Corr. 1
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1