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Merck
CN

1.10046

Total Hardness Test

greener alternative

colorimetric, water hardness 5-25 °d, for use with MQuant® StripScan App, water hardness 6-31 °e, water hardness 9-45 °f, MQuant®

Synonym(s):

Total Hardness chemical test strips

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About This Item

NACRES:
NA.24
UNSPSC Code:
41116116
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description

semi-quantitative

Quality Segment

product line

MQuant®

specific analyte(s)

calcium, magnesium

greener alternative product characteristics

Waste Prevention
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

water hardness measuring range

5-25 °d, 6-31 °e, 9-45 °f

application(s)

drinking water
ground and surface water
mineral water

compatibility

for use with MQuant® StripScan App

detection method

colorimetric

greener alternative category

storage temp.

15-25°C

General description

Method: Colorimetric, with test strips, >5 - >10 - >15 - >20 - >25°d, >6 - >13 - >19 - >25 - >31°e, >9 - >18 - >27 - >36 - >45°f, MQuant®

The MQuant® total hardness test strips can be used to measure water hardness. The hardness (total hardness) of a given water is due to its content of salts of the alkaline earth metals calcium, magnesium, strontium, and barium (“hardening constituents”, later compounds only in traces). In the presence of a green indicator the hardness ions Ca2+ und Mg2+ react with Titriplex® III to form a colorless, stable complex. The hardness ions that are present in excess relative to Titriplex® III react with the indicator to form a red complex. The reaction zones of the test strip, which are impregnated with differing amounts of Titriplex® III, thus assume a green to red color, depending on the hardness of the water sample. The hardness is measured semi-quantitatively by visual comparison of the reaction zones with the color rows of a color scale. For other sensitivities and graduations please consider the other MQuant® tests as well as our Reflectoquant® and Spectroquant® portfolio.

Design for sustainability benefits:

We continue to demonstrate our commitment to our planet and a sustainable future by exploring ways to improve existing products in our portfolio. We have recently reviewed the current line of MQuant® test strips to identify key opportunities to minimize impact without compromising on the product performance.This product has benefited from:

  • Test strip with reduction
  • Recycled aluminum tube
  • Digital instruction leaflet
Learn more about the initiative: Small Changes to Test Strips for Big Impact.

Other Notes

Replaces: 10046-1; 10046

Legal Information

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


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Storage Class

11 - Combustible Solids

wgk

WGK 1



Certificates of Analysis (COA)

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