Certificate of Analysis Executive Standard :HG/T2775-96 
                        Product: Chrome Oxide Green (ceramic grade) 
Synonyms: Chromium (III) Oxide; Chromic Oxide  
Chemical  Formular: Cr2O3 
CAS NO: 1308-38-9  
Molecular Weight:  151.99 
Particle  Shape:Spheroidal 
Appearance:Green  Power 
Chemical characteristics: 
Strong coloring strength and covering strength ,good  dispersion 
insoluble in water and organic solvents.Chemicallly  inert,only reacts with strong or oxidising acids and alkalis at elevated  temperatures.
                         
                        
                          
                             
  | 
                            Item  | 
                            Standard  | 
                           
                          
                            | A-Series | 
                            B-Series | 
                           
                          
                            |   | 
                            Color Index: | 
                            Bright Green | 
                            Dark Green | 
                           
                          
                            1  | 
                            CR2O3  | 
                            ≥99.00  | 
                            ≥99.00 | 
                           
                          
                            2  | 
                            Moisture  | 
                            ≤0.15  | 
                            ≤0.15 | 
                           
                          
                            3  | 
                            Water-soluble salt  | 
                            ≤0.15  | 
                            ≤0.15 | 
                           
                          
                            4  | 
                            Tinting strength  | 
                            100±5  | 
                            100±5 | 
                           
                          
                            5  | 
                            Hiding power  | 
                            15  | 
                            15 | 
                           
                          
                            6  | 
                            Residue 
                              on sieve 45 µm  | 
                            ≤0.15  | 
                            ≤0.20 | 
                           
                          
                            7  | 
                            Oil absorption   | 
                            15-25  | 
                            15-25 | 
                           
                          
                            8  | 
                            Ph value  | 
                            6-8  | 
                            6-8 | 
                           
                         
                        Applications:used in  pigment ling. Plastic pigment,ceramic-glaze making, 
                          glass pigment,building,  colorants and print ink. 
                          Package:in  plastic woven or complex packing,25kgs/bag. 
                          or according to customers. 
                          Storage :the product   should be stored in a dry palce.  |