| Pallets Packing | 20'FCL | 40'FCL | ||
| With | Without | With | Without | |
| 
                           
                            
                              20KG/Fibre Drum
                            
                           
                         | 
                        
                           
                            
                              
                               --
                              
                            
                           
                         | 
                        
                           
                            
                              
                                20 MT
                              
                            
                           
                         | 
                        
                           
                            
                              
                                --
                              
                            
                           
                         | 
                        
                           
                            
                              
                                --
                              
                            
                           
                         | 
                      
Product Name: O-Phenanthroline
Cas No.:5144-89-8
Molecular formula:C12H8N2·H2O
Molecular weight: 198.22
Product details:
Appearance: monohydrate is white crystalline powder. The melting point is 93-94 ℃, the melting point of anhydrous matter is 117 ℃, soluble in 300 parts of water, 70 parts of benzene, and soluble in alcohol and acetone.
Application: o-phenanthroline and ferrous ion form orange complex under the condition of pH4 ~ 5, and then determine the iron content by spectrophotometry.
Quality standard:
Items  | Standard  | 
Assay(C12H8N2·H2O),%  | ≥ 99.0  | 
Molar and absorption coefficients of iron complexes, L/cm.mol  | 1.15ⅹ104  | 
Ethanol dissolution test  | Qualified  | 
Burning residue(sulfate),%  | 0.1  |