Seawater · Major Ions
unseel.com · salinity 35‰ · six ions ≈ 99.4% · constant proportions
Salinity ≈ 35 g/kg
Surface pH ≈ 8.1
phase
Cl⁻ chloride 55%
Na⁺ sodium 31%
SO₄²⁻ sulfate 8%
Mg²⁺ magnesium 4%
Ca²⁺ · K⁺ 2%
Unseel.com · Seawater Composition