Sigma-Aldrich Total Hardness Cell Test 5

Product Line

Spectroquant^®

Quality Level

100

Usage

sufficient for 25 tests

Specific Analyte(S)

calcium

Measuring Range

12-537 mg/L (CaCO₃)
5-215 mg/L (Ca)
7-301 mg/L (CaO)

Water Hardness Measuring Range

0.7-30.1 °d
0.9-37.6 °e
1.2-53.7 °f

Technique(S)

photometry: suitable

Compatibility

for use with Spectroquant^®Move 100
for use with Spectroquant^®Nova 60 A
for use with Spectroquant^®Prove 100
for use with Spectroquant^®Prove 300
for use with Spectroquant^®Prove 600

Detection Method

photometric (Phthalein complexone)

Storage Temp.

15-25°C

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General Description

Method: Photometric, 5 - 215 mg/L (Ca), 0.7 - 30.1 °d, 0.9 - 37.6 °e, 1.2 - 53.7 °f 7 - 301 mg/L (CaO), 12 - 537 mg/L (CaCO3), Spectroquant^®

This Spectroquant^®Total Hardness Cell Test allows the accurate quantification of the hardness of water samples. The total hardness of a given sample is due to its content of salts of the alkaline earth metals calcium, magnesium, strontium, and barium (“hardening constituents”).
Since strontium and barium are generally present in waters only in traces, the hardness is defined as the content in a water of calcium ions, Ca2+, and magnesium ions, Mg2+ (“hardness ions”).

Method applied: In neutral solution calcium and magnesium ions form with phthalein purple a violet dye that is determined photometrically.

The Spectroquant^®Cell Tests come with prefilled 16 mm round cells and all the required reagents to perform the analysis according to the instruction leaflet provided.

All Spectroquant^®Cell and Reagent Test Kits are equipped with the unique Live ID (2D barcode) which allows seamless method recognition and contains essential information such as lot number, expiry date, and automatic calibration updates.SPECTROQUANT is a registered trademark of Merck KGaA, Darmstadt, GermanyGHS02,GHS08H226 - H360DP202 - P210 - P233 - P240 - P241 - P308 + P313