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                                            Description
                                         | 
                                            Colorless crystals, or white, crystalline powder
                                         | 
		
			| 
                                            Solubility
                                         | 
                                            Freely soluble in water; insoluble in alcohol
                                         | 
		
			| 
                                            Identification
                                         | 
                                            -
                                         | 
		
			| 
                                            Identification  'A'
                                         | 
                                            Meets the requirements
                                         | 
		
			| 
                                            Identification  'B'
                                         | 
                                            Meets the requirements
                                         | 
		
			| 
                                            Identification 'C'
                                         | 
                                            Passes test
                                         | 
		
			| 
                                            Assay (on anhydrous basis)
                                         | 
                                            99.0%-100.5%
                                         | 
		
			| 
                                            Tartrates
                                         | 
                                            No crystalline precipitate is formed
                                         | 
		
			| 
                                            Alkalinity
                                         | 
                                            The sample solution ( 1 g in 20 mL of water) is alkaline litmus paper, but after the addition of 0.20 mL of 0.10 N sulphuric acid, no pink colour is produced by 1 drop pf phenolphthalein TS
                                         | 
		
			| 
                                            Water
                                         | 
                                            10.0 to 13.0 %
                                         |