|
Property
|
Ozone
|
vs. Oxygen
|
|---|---|---|
|
Molecular Formula:
|
O3
|
O2
|
|
Molecular Weight:
|
48
|
32
|
|
Color:
|
light blue
|
colorless
|
|
Smell:
|
- clothes after being outside on clothesline
- photocopy machines - smell after lightning storms |
- odorless
|
|
Solubility in Water (@ O-deg C):
|
0.64
|
0.049
|
|
Density (g/l):
|
2.144
|
1.429
|
|
Electrochemical Potential, V:
|
2.07
|
1.23
|
Typical O3 Half-Life vs Temperature
|
Gaseous
|
Dissolved in Water (pH 7)
|
||
|---|---|---|---|
|
Temp (C)
|
half-life*
|
Temp (C)
|
half-life
|
|
-50
|
3-months
|
15
|
30-minutes
|
|
-35
|
18-days
|
20
|
20-minutes
|
|
-25
|
8-days
|
25
|
15-minutes
|
|
20
|
3-days
|
30
|
12-minutes
|
|
120
|
1.5-hours
|
35
|
8-minutes
|
|
250
|
1.5- seconds
|
||
* These values are based on thermal decomposition only. No wall effects, humidity, organic loading or other catalytic effects are considered .
Ozone Solubility
The solubility of ozone depends on the water temperature and the ozone concentration in the gas phase: Units in mg/l or ppm.
| O3 GAS | 5oC | 10oC | 15oC | 20oC |
|---|---|---|---|---|
|
1.5%
|
11.09
|
9.75
|
8.40
|
6.43
|
|
2%
|
14.79
|
13.00
|
11.19
|
8.57
|
|
3%
|
22.18
|
19.50
|
16.79
|
12.86
|
Solubility of Ozone in Water Chart








