Page 25 - 10-Chem-10 Acid, Bases and Salts
P. 25

10. Acid, Bases and Salts                                          eLearn.Punjab

                           Table 10.5 Uses of Salts

Name of salts              Common and Industrial Uses

 Sodium chloride    It is commonly used as a table salt and for cooking purposes, it is also
        (NaCI)       used for de-icing roads in winter and for the manufacture of sodium

Sodium carbonate                             metal, caustic soda, washing soda.
   Na2CO2) Soda
          ash       It is used for the manufacture of glass, detergents, pulp and paper and
       Sodium                                             other chemicals.
     carbonate
  Na2CO3, 10H2O)      It is used as cleaning agent for domestic and commercial purposes,
   Washing soda      for softening of water, in manufacture of chemicals like caustic soda

                                           (NaOH), borax, glass, soap and paper.

 Sodium sulphate         It is used for the manufacture of glass, paper and detergents.

       (Na2SO4)        It is used for the manufacture of detergents, cleaning agents and
   Sodium silicate                                           adhesives.

       (Na2SiO3)    It is used for manufacture of explosives, plastics and other chemicals.
  sodium chlorate
                    It is used for manufacture of heat resistance glass (pyrex), glazes and
       (NaCIO3)           enamels, in leather industry for soaking and cleaning hides.
Sodium tetraborate

  (Na2B4O7. 10H2O)

Calcium chloride It is used for de-icing roads in winter, as a drying agent of chemical

     (CaCI2)        reagents and as freezing agent.
Calcium oxide       It is used as drying agent for gases and alcohol and in steel making, water

(CaO) Quick lime treatment and other chemicals like slaked lime, bleaching powder, calcium

                    carbide. For purification of sugar, a mixture of CaO and NaOH called soda

                    lime is used to remove carbon dioxide and water vapours from air.

Calcium sulphate Gypsum is used as fertilizer, to prepare plaster of Paris which is used for

(CaSO4. 2H2O)       making statues, casts, etc.
  Potassium                  It is used as fertilizer and for the manufacture of flint glass.

Nitrate (KNO3)

Neutralization Reaction

	 A reaction between an acid and a base is called a neutralization reaction. It produces a

salt and water. A few balanced chemical reactions are given here:

                           25
   20   21   22   23   24   25   26   27   28   29   30