Metrohm Thermometric TAN Analyzer

Improve Corrosion Monitoring with Faster, More Repeatable TAN Titrations

A sensor unaffected by solvent or difficult samples

Titration has long been the preferred method for analysis of Total Acid Number (TAN) in petroleum products. Traditional methodologies, such as ASTM D664, are not optimal for crude oil, waxy petroleum feed stocks, and other refinery fractions. Crude oil is often thick or contains precipitating aslphatenes that coat the measuring surfaces of potentiometric electrodes which leads to noisy signal and longer titrations.

Metrohm Thermometric TAN Analyzers improve TAN analysis by using a sensor that is unaffected by solvent or difficult samples.   

> Download the Application Work here

Automated TAN vs Solvotrode

Simple TAN titrations within seconds.

Move away from long analysis times and tedious electrode care with titrations that are often complete in less than 2 minutes. Witness how simple it is to get fast TAN results with a Metrohm Thermometric Analyzer.

Results you can trust

TAN Curve

Know the real TAN value in your sample. Using thermometric titration, you get one well-defined endpoint even in difficult samples. This leads to more accurate data and higher repeatability between laboratories.   

> Read a case study to see how Thermometric and Potentiometric TAN titrations compare


Use less solvent and save now!

Thermometric TAN Analyzer

Metrohm Thermometric TAN Analyzers are so sensitive that we recommend smaller sample sizes and only 30mL of solvent, making it a cost-efficient solution for TAN analysis.


Need more proof of the benefits of Thermometric Titration?

View a customer testimonial where the Metrohm Thermometric Analyzer increased sample throughput by threefold.










Interested in our thermometric TAN Analyzer? Submit the form below and we'll be in touch.

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