| Description | 
                                
                                    A white, crystalline powder or small, opaque, monoclinic crystals. It gradually forms sodium carbonate on heating in the dry state or in solution
                                 | 
	
                            
                                Identifications | 
                                
                                    -
                                 | 
	
                            
                            
                                
	
                                | Carbonate | 
                                
                                    The pH of freshly prepared solution S is not greater than 8.6
                                 | 
	
                            
                                Chlorides | 
                                
                                    NMT 200 ppm
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