Material/Constituent elements of seawater
From AdCiv
Approximate composition of seawater by mass:
| Element | % mass |
|---|---|
| Oxygen | 85.7 |
| Hydrogen | 10.8 |
| Chlorine | 1.9 |
| Sodium | 1.05 |
| Magnesium | 0.14 |
| Sulfur | 0.09 |
| Calcium | 0.04 |
| Potassium | 0.04 |
| Others | Trace |
figures from [1]
Need to find a definitive source for these figures
