Coulometric Karl Fischer titrator is a high-precision laboratory equipment designed for the quantitative determination of water in various substances and materials. Its operating principle is based on coulometric titration. This method allows precise determination of water content by measuring the amount of electricity required to generate titrant in an amount exactly corresponding to the amount of water in the sample. This method is widely used in the chemical, pharmaceutical and materials research industries to determine moisture content with high accuracy.

In the energy storage industry, especially for organic electrolyte batteries, it is critical to ensure that the electrolyte contains virtually no traces of water. Even microscopic amounts of water can negatively impact the performance, safety and life of batteries.

To control the water content in electrolytes, our laboratory uses a TitroLine 7500 KF trace titrator. This equipment is capable of detecting water content down to 10 micrograms in a sample (which corresponds to 10 ppm with an injected sample of 1 g), making it ideal for determining trace amounts of water in small volume samples. Accuracy of measurements is ensured through the use of a generator electrode with a diaphragm separating the cathode and anode spaces.