Density of aqueous solutions of organic acids

Changes in density of aqueous solutions with changes in concentration at 20°C. Density of acetic acid, citric acid, formic acid, D-lactic acid, oxalic acid and trichloroacetic acid 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 organic substances as sugars and alcohols, inorganic chlorides, inorganic sodium salts, inorganic potassium salts and some other inorganic substances

Density of aqueous solutions of organic acids


Density of aqueous solutions of organic acids


Density of aqueous solutions of organic acids


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

Mass% Acetic acid Citric acid Formic acid D-Lactic acid Oxalic acid Trichloroacetic acid
1 0.9996 1.0022 1.0006 1.0002 1.0030 1.0034
5 1.0052 1.0189 1.0102 1.0086 1.0220 1.0230
10 1.0121 1.0402 1.0224 1.0199 1.0479
20 1.0250 1.0858 1.0467 1.0439 1.1035
30 1.0369 1.1346
40 1.0474 1.0935 1.0915 1.2188
50 1.0562 1.2803
60 1.1392
70 1.0673 1.1586
80 1.1848
100 1.0477
Density of acids solved in water at 20°C, given as wt%


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

Mass% Acetic acid Citric acid Formic acid D-Lactic acid Oxalic acid Trichloroacetic acid
1 0.168 0.053 0.219 0.112 0.112 0.062
5 0.876 0.274 1.143 0.584 0.585 0.322
10 1.850 0.578 2.414 1.233 0.680
20 4.163 1.301 5.410 2.775 1.530
30 7.137 2.231
40 11.102 14.483 7.401 4.080
50 16.653 6.120
60 16.652
70 38.857 50.692
80 44.405
Mol/kg solution at 20°C


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

Mass% Acetic acid Citric acid Formic acid D-Lactic acid Oxalic acid Trichloroacetic acid
1 0.166 0.052 0.217 0.111 0.111 0.061
5 0.837 0.265 1.097 0.560 0.568 0.313
10 1.685 0.541 2.221 1.132 0.641
20 3.414 1.254 4.548 2.318 1.351
30 5.180 1.772
40 6.977 9.502 4.847 2.984
50 8.794 3.918
60 7.588
70 12.441 17.619
80 10.522
100 17.447
Mol/liter solution at 20°C

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.

Related Documents

Matched Content

Tag Search

Search the Engineering ToolBox

- "Search is the most efficient way to navigate the Engineering ToolBox!"

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your SketchUp model with the Engineering ToolBox - SketchUp Extension/Plugin - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Translate the Engineering ToolBox!
About the Engineering ToolBox!

close