| Item | Details | 
                                          
                                            | Appearance | brown liquid | 
                                          
                                            | Hue(2% aqueous solution) | 5 below | 
                                          
                                            | Sodium sulfate | 2.5± 0.7 | 
                                          
                                            | pH-value(2% aqueous solution) | 10± 0.5 | 
                                          
                                            | Ash (%) | 15± 2 | 
                                          
                                            | Solid content (%) | 45± 1 | 
                                        
                                      
                                    
                                      
                                    ● Packing & Storage:  In 200kg galvanized iron drum. Closed tightly. Stored in dry and draughty warehouse, shelf life is 2 yrs.