Page 1 - LN
P. 1

SAI International School
                                                       Class-X

                                               Subject_ Chemistry
                                          Topic- Acids, Bases & Salts
                            Sub Topic- Study of Salts – 2. Bleaching Powder

                                                  LESSON NOTES

                     STUDY OF SALTS-

                              2.  BLEACHING POWDER  (Common Name)
               OR
                               Chemical Name -Calcium Oxy Chloride
                               Chemical Formula – CaOCl
                                                               2
                               Preparation of Bleaching powder-

               o  Chlorine produced on passing electricity through brine solution undergoes
                  reaction with dry slaked lime [Ca (OH) 2] to produce Bleaching powder.





               o  The reaction is as follows:






























               Preparation of Bleaching Powder Structure of CaOCl
                                                                         2

                                Properties of Bleaching powder-

                   1.  White Powder
                   2.  Has a strong smell of Chlorine
                   3.  Soluble in cold water


               1
   1   2   3