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Ozone Solubility In Water

Solubility is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent.

One gas that everyone is familiar with is oxygen or O2. We breathe it every day, but so do fish who live under water. This means that O2 is soluble with the water. Ozone gas (O3) is 13 times more soluble in water than O2 gas!

Water at 86F will have less ozone bubbles than water at 50F.

Water at 50F will have more ozone bubbles
than water at 86F.

Conditions which affect the solubility level of a gas into water.

  1. One is the temperature of the water. See example pictures above.
  2. Another factor is water pressure. Water that is at 35 PSI will have twice the solubility of water at 10 PSI.
  3. Pressurized gas, meaning gas that is at an increased pressure, being applied into the water, which is also under an increased pressure, will increase the solubility. See the “Pressurized ozone gas” pictures below.
  4. If the gas that you are placing into the water is at an increased concentration, this will allow additional solubility.
  5. The efficiency of the device whose purpose is to entrain the ozone into the water.

Note: Adding any one of the above list to your process will improve the solubility.

Incorporating more than one will be even better.

Picture showing ozone in water under 5 PSI

Picture showing ozone in water under 20 PSI

Conclusion: Higher water pressures result in higher dissolved ozone levels.

Click for more information on ozone solubility in water.

Last Updated: July 29, 2014

The above information is from and is copyrighted by Ozone Solutions Inc.
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