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Baking Soda - Preparation, Properties and Uses



Sodium bicarbonate or Baking soda

Sodium hydrogen carbonate is a white crystalline solid having a density of about 2.2 g/mL. It has alkaline taste and is sparingly soluble in water. The solubility of sodium hydrogen carbonate increases with the rise of temperature.


Uses of sodium bicarbonate or Baking soda

1. As a component of baking powder.
2. In fire extinguishers.
3. In medicines as a mild antiseptic for skin diseases and to neutralize the acidity of the stomach.
4. As a reagent in laboratory.


Methods of prepration of baking soda

Sodium hydrogen carbonate ( baking soda ) is made by saturating a solution of sodium carbonate with carbon dioxide. The white crystalline powder of sodium hydrogen carbonate being less soluble, gets separated out.