E - 500
#
 :
 
(SODIUM CARBONATES) 
(i)  
(Sodium carbonate)
(ii)  
(Sodium hydrogen carbonate)
(iii)     
(Sodium sesquicarbonate)
#
   :

#
  :
 , , ,    
#
  :
#
 ,  :
 - ,  
#
  :
#
###
