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                  Sodium Naphthionate
                        
                          | Specification  Sheet | 
                           
                        
                          | Products  name: | 
                          Sodium  Naphthionate     4-Amino-1-naphthalenesulfonic acid | 
                         
                        
                          |   | 
                            | 
                         
                        
                          | Molecular  Formula: | 
                          C10H8NNaO3S.H2O | 
                         
                        
                        
                          | Cas No: | 
                          6035-47-8 | 
                         
                        
                          | Molecular  Weight: | 
                          263.24 | 
                         
                        
                          | Cas  no: | 
                          130-13-2 | 
                         
                        
                          | Appearance: | 
                          Grey White Crystal | 
                         
                        
                          | Melting point:  | 
                          280 °C                              | 
                         
                        
                          | Strength: | 
                          74.6%-75.8% | 
                         
                        
                          | Water insolubles: | 
                          0.06%max  | 
                         
                        
                          | 1-Naphthylamine: | 
                          0.04%max | 
                         
                        
                          | Descriptions: | 
                          1-Amino-4-naphthalene  sulfonic acid sodium salt is a greyish-white crystal. The sodium salt of industrial  products contains two or four crystal water. It changes slowly into a rose  colour in air. It is easily soluble in water and soluble in 95% of alcohol. Its  chief use is employed in organic pigments or the sythesis of intermediates of  azo-dyes. | 
                         
                        
                          | Packages: | 
                          25kgs  or 50kgs  iron drums, cartons and woven  bags. | 
                         
                        
                          | Storage  & transportation: | 
                          The  product must be stored in shade, dry & well-ventilated warehouse. Avoid to  be contacted with oxidizing chemicals and combustible organic substances. Keep  it away from direct sunlight, heat, sparks and open flames. Carefully handle  the product and avoid damaging the package. | 
                         
                       
                       
                      
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