Ozone Properties
Ozone is one of the most powerful oxidants used in water & air applications. See the different properties of ozone below.
| Property |
Ozone |
Oxygen |
| Molecular Formula: |
O3 |
O2 |
| Molecular Weight: |
48 g/mol |
32 g/mol |
| Smell: |
- Clothes after being outside on clothesline
- Photocopy machines
- Smell after lightning storms
|
Odorless |
| Color: |
Light blue |
Colorless |
| Boilint Point: |
-111.3 deg C (-168.4 deg F) |
-183 deg C (-297.4 deg F) |
| Density: |
2.141 kg/m3 (0.133 lb/ft3) |
1.429 kg/m3 |
| Electrochemical Potential: |
2.07 |
1.23 |
| Specific gravity @ STP (air = 1): |
1.612 |
1.105 |
| Solubility in Water (0-deg C): |
190 mg/l |
14.6 mg/l |
| CAS number |
10028-15-6 |
7782-44-7 |
| Odor Threshold: |
5-20 PPB (0.005 - 0.02 PPM) |
Odorless |
Ozone Half-Life vs. Temperature
| Temp (C) |
Half-life in air* |
| -50 |
3-months |
| -35 |
18-days |
| -25 |
8-days |
| 20 |
3-days |
| 120 |
1.5-hours |
| 250 |
1.5-seconds |
* These values are based on thermal decomposition only. No wall effects, humidity, organic loading or other catalytic effects are considered.
| Temp (C) |
Half-life in water (minutes) |
| 15 |
30 |
| 20 |
20 |
| 25 |
15 |
| 30 |
12 |
| 35 |
8 |
