| 
                                            Appearance
                                         | 
                                            White to off-white crystalline powder
                                         | 
		
			| 
                                            Assay                                                                                               
                                         | 
                                            Min 98%
                                         | 
		
			| 
                                            Chloride (Cl)
                                         | 
                                            Max 0.003%
                                         | 
		
			| 
                                            Iron (Fe)
                                         | 
                                            Max 0.005%
                                         | 
		
			| 
                                            Mercury (I) (as Hg)
                                         | 
                                            Max 0.15%
                                         | 
		
			| 
                                            Nitrate (NO3)
                                         | 
                                            Passes ACS test (about 0.003%)
                                         | 
		
			| 
                                            Residue after reduction
                                         | 
                                            Max 0.02%
                                         | 
		
			| 
                                            Suitability (for COD determination acc.NEN (Max 0.8g Hg (II)SO4/20ml)
                                         | 
                                            Passes test
                                         | 
		
			| 
                                            Solubility (10% solution in hot 5N H2SO4)
                                         | 
                                            Clear and colorless
                                         |