Certificate of Analysis  Executive  Standard :HG/T2775-96 
                        ﹡Product: Chrome Oxide Green  (pigment 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 
                              (GN-Series)                              | 
                            Standard 
                              (GM-Series)                             | 
                            Standard 
                              (GX-Series)                             | 
                           
                          
                            | 1 | 
                            Color Index:  | 
                            Yellowish Green | 
                            Bright Green | 
                            Blueish Green | 
                           
                          
                            2  | 
                            CR2O3  | 
                            ≥99.00  | 
                            ≥99.00 | 
                            ≥99.00 | 
                           
                          
                            3  | 
                            Moisture  | 
                            ≤0.15  | 
                            ≤0.15 | 
                            ≤0.15 | 
                           
                          
                            4  | 
                            Water- soluble salt  | 
                            ≤0.15  | 
                            ≤0.15 | 
                            ≤0.15 | 
                           
                          
                            5  | 
                            Tinting strength  | 
                            100±5  | 
                            100±5 | 
                            100±5 | 
                           
                          
                            6  | 
                            Hiding power  | 
                            15  | 
                            15 | 
                            15 | 
                           
                          
                            7  | 
                            Residue on sieve 45 µm  | 
                            ≤0.01  | 
                            ≤0.005 | 
                            ≤0.05 | 
                           
                          
                            8  | 
                            Cr+6 (ppm)  | 
                            ≤5  | 
                            ≤5 | 
                            ≤5 | 
                           
                          
                            9  | 
                            Oil absorption  | 
                            15-25  | 
                            15-25 | 
                            15-25 | 
                           
                          
                            | 10 | 
                            Ph value | 
                            6-8 | 
                            6-8 | 
                            6-8 | 
                           
                         
                        * Note: Detail technical data as color tone, grain  size, tintingstrength, PH Value are available upon request. 
                          ﹡Applications:using in pigment line. Paint& Coatings, Glaze  stains, Body stains, Ceramic-glaze making,  Printing ink, Colorants, Plastic and so on. 
                          ﹡Package:in  plastic woven or complex packing,25kg/bag.or according to customer  request. 
                          ﹡Storage : The product should be stored in a dry place.                          |