Describe two important uses of each of the following : (i) caustic soda (ii) sodium carbonate (iii) quicklime. ?

Caustic Soda

o In petroleum refining process
o In the manufacture of soap paper, artificial silk, and a number of chemicals
o In the process of purifying bauxite
o In textile industries to mercerise cotton fabrics
o In the preparation of pure fats and oils
o As a reagent in laboratory

Uses of Sodium Carbonate

o In water softening
o It is used in laundering and cleaning
o In the manufacture of glass, soap, borax, and caustic soda
o In industries in the manufacture of paper, paints, and textile
o In laboratory as a reagent

Uses of Quick Lime

• For manufacturing cement, it is also the cheapest form of alkali
• For manufacturing sodium carbonate from caustic soda
• For manufacturing dye stuffs
• For purifying sugar