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1.11174

Supelco

Chlorine and pH Test Kit, colorimetric

0.1-1.5 mg/L (Cl₂), pH range 6.8-7.8, MQuant®

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Synonym(s):
Chlorine and pH Visual Test Kit
UNSPSC Code:
41116116
NACRES:
NA.24

product name

Chlorine and pH Test, colorimetric, 0.1-1.5 mg/L (Cl2), pH range 6.8-7.8, for use with MQUANT®

specific analyte(s)

chlorine

Quality Level

100

measuring range

0.1-1.5 mg/L (Cl2)

pH range

6.8-7.8

compatibility

for use with MQUANT®

detection method

colorimetric

storage temp.

15-25°C

Related Categories

General description

(free chlorine, total chlorine, and pH) Method: colorimetric with color-matching vessel 0.1 - 0.3 - 0.6 - 1.0 - 1.5 mg/l Cl₂ pH: 6.8 - 7.1 - 7.4 - 7.6 - 7.8 MQuant®
Chlorine containing disinfectants are most widely used. They are applied particularly to disinfect drinking water and swimming pool water. This MQuant® Chlorine and pH test (formally MColortest®) measures chlorine and pH and evaluates the color reactions based on the transmitted light method. So even turbid and colored water samples can be analyzed without further preparation. The color matching vessel is made of very durable, lightfast plastic, thus suitable for industrial areas and wet environments.
Using the refill packs 1.11143 and 1.11157, the original test kit can be used for a very long time, making it a particularly economical and ecological system.

Method
In weakly acidic solution free chlorine reacts with diethyl-p-phenylenediamine (DPD) to form a red-violet dye. Combined chlorine reacts only after the addition of iodide ions. This permits free chlorine to be distinguished from combined chlorine.
The pH determination takes place by means of chlorine-resistant phenol red indicator solution, which changes color from yellow to red-violet in the pH range of 6.5 8.2.

This test is not suited for seawater.
Water in public and private swimming pools must be disinfecting to kill bacteria and viruses. Chlorine-containing preparations or even chlorine gas itself are usually used for this purpose. To check the content of chlorine and the pH value is essential.

Application

  • Green synthesis and characterization of binary, ternary, and quaternary Ti/MMO anodes for chlorine and oxygen evolution reactions.: This study presents the development of titanium mixed metal oxide (Ti/MMO) anodes for chlorine and oxygen evolution, crucial for electrolysis processes in water treatment (Abdel-Aziz et al., 2024).

Legal Information

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

Pictograms

CorrosionHealth hazard
GHS05,GHS08

Signal Word

Danger

Hazard Statements

H290 - H314 - H373

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A - STOT RE 2 Oral

Target Organs

Thyroid

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 2

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Protocols

Analytical Method: Analytical Quality Assurance, Standard for Total Chlorine

Preparation of a standard solution for total chlorine.

Analytical Method: Analytical Quality Assurance, Standard for Free Chlorine (dichloroisocyanuric acid)

AQA Standard for free chlorine - Preparation of a standard solution for free chlorine

Analytical Method: Analytical Quality Assurance, Standard for Free Chlorine (DIN)

Preparation of a standard solution for free Chlorine according to DIN EN ISO 7393

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