Digital tensiometer SDT

spinning dropfor emulsifierfor surface and interfacial tension measurement

The SDT Spinning Drop Tensiometer measures interfacial tension with a high degree of accuracy and a particularly wide range down to very low values. The SDT is the ideal solution for the quality control and development of emulsions and surfactants thanks to its enormous bandwidth, small sample volumes, and simple handling during preparation. The instrument is particularly well-suited for analyzing the interfacial behavior of mini- and microemulsions, e.g. for enhanced oil recovery (EOR) or the pharmaceutical and cosmetics branches. Applications • Development of emulsions and microemulsions • Surfactant flooding in enhanced oil recovery (EOR) • Formulations in pharmaceuticals and cosmetics • Bioavailability of drugs • Food emulsions • Surfactant research MEASURING OPTIONS Measurement of interfacial tension in an extremely wide range starting from 10-6 mN/m Analysis using the Vonnegut drop diameter method Analysis using the Young-Laplace drop shape curvature method Long-term measurements for investigating surfactant dynamics Temperature-dependent analyses Efficient and flexible temperature control We have ensured an ideal choice of temperature settings so the actual conditions of a process or an oil reservoir can be reproduced when carrying out analyses with the Spinning Drop Tensiometer – SDT. The integrated electrical heating unit sets the target temperature quickly and accurately, keeps it constant and saves the need of an additional thermostat. The precise contactless infrared sensor measures the temperature and relays the thermal conditions very close to the drop.