Substances in Common Use

• Common salt → NaCl

 

• Bleaching powder → CaOCl₂
• Preparation–

Ca(OH)₂ + Cl₂ →CaOCl₂ + H₂O 

• Use –

Oxidising agent

Disinfecting material

Baking soda – (NaHCO₃) Sodium hydrogen carbonate

• Preparation –

          

• Use –

Making baking powder             (Baking soda + Mild acid, like tartaric acid)

Ingredient for antacids

Soda–acid fire extinguisher

Washing soda – Na₂CO₃. 10H₂O

• Preparation–

• Use –

            In glass, soap, paper industries

            Making sodium compounds such as borax

            As domestic cleaning agent

• Removing permanent hardness of water

Preparation of soaps and detergents:

• Soaps: Prepared by reacting oil/fats with sodium hydroxide, the…