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                                            Description
                                         | 
                                            Colorless, translucent crystals, or white, granular to fine, crystalline powder
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                                            Solubility
                                         | 
                                            Solubility	Very soluble in water; freely soluble in alcohol; very slightly soluble in ether
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                                            Identification (By IR)
                                         | 
                                            Meets the requirements
                                         | 
		
			| 
                                            Assay (on anhydrous basis)
                                         | 
                                            99.5% - 100.5%
                                         | 
		
			| 
                                            Residue on ignition
                                         | 
                                            NMT 0.1%
                                         | 
		
			| 
                                            Sulphates
                                         | 
                                            NMT 0.015%
                                         | 
		
			| 
                                            Oxalic acid
                                         | 
                                            NMT 0.036%
                                         | 
		
			| 
                                            Bacterial endotoxin
                                         | 
                                            NMT 50 ppm
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			| 
                                            Clarity of solution
                                         | 
                                            The sample solution shows the same clarity as that of water or its opalescence is not more pronounced than Standard suspension A
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			| 
                                            Colour of solution
                                         | 
                                            The sample solution is not more intensely colored than Standard solutions A,B, and C.
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			| 
                                            Readily carbonisable substance
                                         | 
                                            The color of the acid is not darker than that of a similar volume of Matching Fluid K  in a matching tube, the tubes being observed vertically against a white background
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			| 
                                            Sterility Tests
                                         | 
                                            Meets the requirements
                                         | 
		
			| 
                                            Water
                                         | 
                                            NMT 1.0%
                                         |