How to Make a Saturated Solution of Sodium Bicarbonate


Sodium bicarbonate, NaHCO3, is a white inorganic salt commonly known as baking soda. The saturated solution of sodium bicarbonate may be used as a cleaning agent or to neutralize acid solutions. The saturated solution contains the maximum amount of the salt that can be dissolved at the given temperature.

Things You'll Need

  • Beaker
  • Scale
  • Coffee filter
  • Funnel
  • Table spoon
  • Multiply 0.15 by the volume of water to calculate the amount of sodium bicarbonate that should be used. For example, for 240 ml of water, 36 g (240 x 0.15) of the salt is needed.

  • Weigh the calculate amount of sodium bicarbonate on the scale.

  • Pour the water in the beaker and add the sodium bicarbonate weighed in Step 2.

  • Swirl the beaker for 5 minutes to dissolve the sodium bicarbonate. You can also use a spoon to mix the solution. Note that some salt should remain undissolved. It is normal and indicates the saturated solution.

  • Insert a regular coffee filter into a funnel and slowly pour the solution through to separate out the undissolved sodium bicarbonate. Ensure that the filtered saturated solution is collected into another jar.


  • "Chemistry", K.W. Whitten, R.E. Davis, L. Peck, and G.G. Stanley, Brooks Cole, Feb. 17, 2009.
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