Thermometric titration is a problem solver for difficult samples which cannot be titrated potentiometrically and is well-suited to handle aggressive matrices such as HF because of the robust thermometric sensor.
The thermometric sensor requires no calibration and contains no membrane or diaphragm. The endpoint is determined by a change in temperature of the solution during the titration. Rapid analysis is possible with this technique – acid mixtures, for example, can be analyzed in less than three minutes.
New: ASTM D8045, released in 2016, describes a thermometric catalytic titration method to measure the Acid Number in crude oil and petroleum products. Using Metrohm thermometric titration, you can speed up your analyses and reduce the amount of solvent required.