In this application note, a redox titration method is presented for the determination of active oxygen content in detergents, in accordance with ASTM Standard D2180-17.
By downloading this application package, you will receive a PDF of the application note as well as the required data for the LabX™ titration software method.
Why Is the Determination of Active Oxygen Content Important in Detergents?
The strength and effectiveness of detergents directly depend on the ingredients and their respective concentration. Active oxygen compounds, such as sodium percarbonate, are commonly used in detergents to remove colored stains and kill germs. Therefore, the determination of the active oxygen content in detergents is important to ensure their efficacy.
What Is the ASTM Standard D2180, and How Is It Used to Determine the Active Oxygen Content in Detergents?
ASTM Standard D2180 is a standard test method used to determine the active oxygen content in bleaching compounds. This test method has been adapted to be performed on a METTLER TOLEDO Excellence titrator with an InMotion™ Autosampler to provide accurate and precise results within minutes.
How Is Active Oxygen Determined in Detergents Using Redox Titration?
Active oxygen in cleaning products, such as detergents, is commonly determined using redox titration. The hydrogen peroxide released upon dissolution of the powdered cleaning product is titrated with KMnO4 solution under acidic conditions and monitored with a DMi140-SC platinum ring redox electrode. This titration can also be followed visually, and the process is finished when the pink color of the permanganate disappears.
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