eBook: Liquid concentration and density measurements

Common methods of measuring liquid concentration in industrial chemical applications

This eBook focuses on comparing two common methods of measuring liquid concentration used in industrial chemical applications: refractive index technology (refractometer) and density meters that use different measurement techniques, including Coriolis, ultrasonic, nuclear, and microwave.

In addition to the benefits and disadvantages of each type of technology, this eBook looks at the use of refractometers in several common applications:


  • Manufacturing sulfuric acid by contact process
  • Nitrile butadiene rubber (NBR) production by polymerization
  • Chlor-alkali processes
  • Chemical interface and product identification in loading & unloading operations
  • Caprolactam (C6H11NO) production process
  • Ammonium nitrate production process

Learn more about liquid measurements in chemical industry applications. 

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