1.08033

Total Hardness Test Refill pack

for use with MCOLORTEST^®

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

Properties

• feature: refill
• Quality Level: 100
• specific analyte(s): calcium, magnesium
• compatibility: for use with MCOLORTEST^®
• detection method: titrimetric
• storage temp.: 15-25°C

Description

General description

This refill pack contains all the reagents for the MQuant^® test kit 1.08039 for the colorimetric evaluation of total hardness. When the reagents of the MQuant^® test are used up, the kit can be replenished by ordering the appropriate refill pack. Refill packs are available for a range of MQuant^® test kits, making it a particularly economical and ecological system.

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

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 2