Automotive Antifreeze and Coolant Fluids Blending

Ethylene glycol, CH2OH2 and propylene glycol, C3H8O2 concentration measurement for airplane de-icing 

In aviation, ethylene glycol (EG) or propylene glycol (PG) are used as de-icing and anti-icing fluids that keep the atmospheric ice from accumulating on an aircraft’s surfaces during the flight. 

After the de-icing on the ground, the used liquid is captured into the containment system to prevent the streams contamination.

Vaisala PolarisTM process refractometer is for monitoring:

  • the freezing point of the glycol in the glucol-water mixture
  • the concentration of collected fluids from the performed de-icing. This is required in order to direct pure water to drainage

The in-line process refractometer is also used for measuring the final concentration after the dehydration process before the glycol is returned to storage.

Learn the details of the de-icing liquids spraying and recovery process at airports from the application note.

Download the application note in PDF by filling the form.

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