Liquid Measurements in demanding chemical applications: Density Vs. Concentration

chemical liquid density vs concentration measurements
Industrial Manufacturing and Processes
Liquid Measurements

In this webinar, we compare common density measurement technologies with concentration measurements based on refractive index in several chemical industry applications. You will learn where liquid measurements are more effective with density or refractive index. 


Density measurement devices are used in many liquid chemical processes. Since Archimedes observed the buoyancy of an object immersed in liquid and calculated that the net force on the object is the difference between the buoyant force and its weight, density has been on of the best ways to determine composition.

Common technologies to measure density include nuclear meters, Coriolis or mass flow effect meters, microwave, and ultrasonic meters. However, all require compensations for the effects of temperature, pressure, vibration, coating, and other conditions. In chemical applications, liquid concentration measurements obtained with a refractometer can be a superior solution, without error from gas bubbles, changes to pressure or velocity, or time to achieve temperature equilibration. 

Learn about common density measurement technologies compared with concentration measurements based on refractive index in chemical applications.

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Keijo Pyörälä

Manager, Business Development, Liquid Measurements

Keijo Pyörälä has been working at Vaisala (K-Patents) Liquid Measurements over 25 years in different positions from Product Management to Regional Sales Management and Global Business Development. Keijo has Master’s Degree in Chemical Engineering from Lappeenranta University of Technology and Executive Management Degree from Aalto University. He has been involved in number of global product and business development projects in different industry segments from food & beverages, pulp & paper, sugar & sweeteners to chemical & polymer and oil & gas all over the world. His specialty is process optimization with in-line process measurements, process efficiency and energy savings as well as quality improvement projects.