Physical Properties, Standard conditions P = 101325 Pa, T = 273.3 K

  • Density of ozone: 2.14 kg/m3
  • Molecular weight of ozone: 48
  • Density of oxygen: 1.43 kg/m3
  • Molecular weight of oxygen: 32
  • Density of air: 1.29 kg/m3
  • Density of water: 1,000 kg/m3

Useful Conversion Factors: (for water)

  • 1,000 liters = 1 m3 = 264 US gallons
  • 1 gal = 3.785 liters = 3,785 ml
  • 1 m3= 35.3 ft3 = 264 US Gallons

Ozone Concentration in Water

  • 1 mg/l = 1 PPM O3 = 1 g O3/m3 water {By weight}

Ozone Concentration in Air By Volume

  • 1 g O3 / m3 = 467 PPM O3
  • 1 PPM O3 = 2.14 mg O3/m3
  • 100 pphm (parts per hundred million) = 1 ppm (parts per million)

Ozone Concentration in Air by Weight

  • 100 g O3/m3 = 7.8% O3 (Approximate)
  • 1% O3 = 12.8 g O3/m3 (Approximate)
  • 1% O3 = 7,284 PPM Ozone

Ozone Concentration in Oxygen by Weight

  • 100 g O3/m3 = 6.99% O3 (Approximate)
  • 1% O3 = 14.3 g O3/m3 (Approximate)
  • 1% O3 = 6,520 PPM Ozone