Densities 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.

Mass%	Acetic acid (g/cm³)	Citric acid (g/cm³)	Formic acid (g/cm³)	D-Lactic acid (g/cm³)	Oxalic acid (g/cm³)	Trichloroacetic acid (g/cm³)
1	0.9996	1.0022	1.0006	1.0002	1.003	1.0034
5	1.0052	1.0189	1.0102	1.0086	1.022	1.023
10	1.0121	1.0402	1.0224	1.0199		1.0479
20	1.025	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

Mass%	Acetic acid (mol/kg)	Citric acid (mol/kg)	Formic acid (mol/kg)	D-Lactic acid (mol/kg)	Oxalic acid (mol/kg)	Trichloroacetic acid (mol/kg)
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	1.85	0.578	2.414	1.233		0.68
20	4.163	1.301	5.41	2.775		1.53
30	7.137	2.231
40	11.102		14.483	7.401		4.08
50	16.653					6.12
60				16.652
70	38.857		50.692
80				44.405
100

Mass%	Acetic acid (mol/L)	Citric acid (mol/L)	Formic acid (mol/L)	D-Lactic acid (mol/L)	Oxalic acid (mol/L)	Trichloroacetic acid (mol/L)
1	0.166	0.052	0.217	0.111	0.111	0.061
5	0.837	0.265	1.097	0.56	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	5.18	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