Density of aqueous solutions of inorganic potassium salts

Changes in density of aqueous solutions with changes in concentration at 20°C. Density of potassium salts in water is plotted as function of wt%, mol/kg water and mol/l solution.

Be aware of the concentration units in the figures:

wt%: Mass of solute/total mass of solution*100%

mol/kg: Molality = moles of solute/kg of water 

mol/liter: Molarity = moles of solute/liter of solution

Values are tabulated below the figures.

See also density of aqueous solutions of inorganic chlorides, inorganic sodium salts, some other inorganic substances, organic acids and organic substances as sugars and alcohols.

Density of aqueous solutions of potassium salts

Density of aqueous solutions of potassium salts

Density of aqueous solutions of potassium salts





Density of aqueous solutions at 20°C, given as g/cm3:

Mass% Potassium bromide Potassium carbonate Potassium chloride Potassium dihydrogen phosphate Potassium hydrogen carbonate Potassium hydrogen phosphate Potassium hydroxide Potassium iodide Potassium nitrate Potassium permanganate Potassium sulfate
1 1.0054 1.0072 1.0046 1.0053 1.0046 1.0068 1.0068 1.0056 1.0045 1.0051 1.0062
5 1.035 1.0437 1.0304 1.0342 1.031 1.0412 1.0419 1.036 1.0298 1.0322 1.0388
10 1.074 1.0904 1.0633 1.0703 1.065 1.068 1.0873 1.0762 1.0627 1.0806
20 1.1601 1.1898 1.1328 1.1372 1.1818 1.1659 1.1326
30 1.2593 1.2755 1.2813 1.2712
40 1.3746 1.4142 1.3881 1.3959
50 1.5404 1.5024
Density at 20°C, given as g/cm3


Conversion of the concentration from mass% to mol/kg (moles of solute/kg of water = molality):

Mass% Potassium bromide Potassium carbonate Potassium chloride Potassium dihydrogen phosphate Potassium hydrogen carbonate Potassium hydrogen phosphate Potassium hydroxide Potassium iodide Potassium nitrate Potassium permanganate Potassium sulfate
1 0.085 0.073 0.135 0.074 0.101 0.058 0.18 0.061 0.1 0.064 0.058
5 0.442 0.381 0.706 0.387 0.526 0.302 0.938 0.317 0.521 0.333 0.302
10 0.934 0.804 1.490 0.816 1.11 0.499 1.98 0.669 1.099 0.638
20 2.101 1.809 3.353 2.497 4.456 1.506 2.473
30 3.601 2.814 7.639 2.582
40 5.602 4.824 11.882 4.016
50 7.236 17.82
Molality at 20°C, given as mol/kg water


Conversion of the concentration from mass% to mol/liter (moles of solute/liter of solution = molarity):

Mass% Potassium bromide Potassium carbonate Potassium chloride Potassium dihydrogen phosphate Potassium hydrogen carbonate Potassium hydrogen phosphate Potassium hydroxide Potassium iodide Potassium nitrate Potassium permanganate Potassium sulfate
1 0.084 0.073 0.135 0.074 0.1 0.058 0.179 0.061 0.099 0.064 0.058
5 0.435 0.378 0.691 0.380 0.515 0.299 0.929 0.312 0.509 0.327 0.298
10 0.903 0.789 1.426 0.786 1.064 0.491 1.938 0.648 1.051 0.62
20 1.95 1.722 3.039 2.272 4.213 1.405 2.24
28 3.175 2.584 6.851 2.297
40 4.62 4.03 9.896 3.364
50 5.573 13.389
Molarity at 20°C, given as mol/l solution

Related Topics

  • Material Properties - Material properties for gases, fluids and solids - densities, specific heats, viscosities and more
  • Density - Density of different solid materials, liquids and gases. Definitions and convertion calculators.

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