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Density of aqueous solutions of inorganic sodium salts

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

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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 chloridesinorganic potassium salts, some other inorganic substances, organic acids and organic substances as sugars and alcohols.







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

For full table - rotate the screen!

Mass%Sodium acetateSodium bromideSodium carbonateSodium chlorideSodium citrate dihydrateSodium dihydrogen phosphateSodium hydrogen carbonateSodium hydrogen phosphateSodium hydroxydeSodium nitrateSodium phosphateSodium sulfateSodium thiosulfate
1 1.0034 1.006 1.0086 1.0053 1.0049 1.0056 1.0054 1.0082 1.0095 1.005 1.01 1.0071 1.0065
5 1.0234 1.038 1.0502 1.034 1.0331 1.0358 1.0337 1.048 1.0538 1.0322 1.0579 1.0436 1.0399
10 1.0495 1.0803 1.1029 1.0707 1.0708 1.0747 1.1089 1.0674 1.0905 1.0827
20 1.1050 1.1745 1.1478 1.1492 1.1576 1.2192 1.1429 1.1907 1.174
30 1.1602 1.2842 1.2488 1.3277 1.2256 1.2739
40 1.4138 1.3493 1.4299 1.3175 1.3827
Density at 20°C, given as g/cm3


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

For full table - rotate the screen!

Mass%Sodium acetateSodium bromideSodium carbonateSodium chlorideSodium citrate dihydrateSodium dihydrogen phosphateSodium hydrogen carbonateSodium hydrogen phosphateSodium hydroxydeSodium nitrateSodium phosphateSodium sulfateSodium thiosulfate
1 0.123 0.098 0.095 0.173 0.039 0.084 0.12 0.071 0.253 0.119 0.062 0.071 0.064
5 0.642 0.512 0.497 0.901 0.204 0.439 0.627 0.371 1.316 0.619 0.321 0.371 0.333
10 1.354 1.08 1.048 1.901 0.431 0.926 2.778 1.307 0.782 0.703
20 3.047 2.43 4.278 0.969 2.084 6.25 2.941 1.76 1.581
30 5.224 4.165 3.572 10.715 5.042 2.711
40 6.479 5.557 16.668 7.844 4.216
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):

For full table - rotate the screen!

Mass%Sodium acetateSodium bromideSodium carbonateSodium chlorideSodium citrate dihydrateSodium dihydrogen phosphateSodium hydrogen carbonateSodium hydrogen phosphateSodium hydroxydeSodium nitrateSodium phosphateSodium sulfateSodium thiosulfate
1 0.122 0.098 0.095 0.172 0.039 0.084 0.12 0.071 0.252 0.118 0.062 0.071 0.064
5 0.624 0.504 0.495 0.885 0.2 0.432 0.615 0.369 1.317 0.607 0.323 0.367 0.329
10 1.279 1.05 1.041 1.832 0.415 0.896 2.772 1.256 0.768 0.685
20 2.694 2.283 3.928 0.891 1.93 6.096 2.6989 1.677 1.485
30 4.243 3.744 3.123 9.958 4.326 2.417
40 5.496 4.499 14.3 6.2 3.48
Molarity at 20°C, given as mol/l solution
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