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                    Product Name: Germanium sesquioxide 
                        CAS NO.: 12758-40-6 
                        Description: 
 
Items | 
 Specifications  |  
| 
 Description  | 
 White crystalline powder  |  
| 
 Ge-132  | 
 > 99.5%    |  
| 
 Pb(mg/kg)  | 
 < 0.5 ppm  |  
| 
 As(mg/kg)        | 
 <0.5 ppm  |  
| 
 Cd(mg/kg)  | 
 < 0.1 ppm  |  
| 
 Cu(mg/kg)  | 
 <1 ppm  |  
| 
 Hg(mg/kg)  | 
 <0.1ppm  |  
| 
 GeO2(mg/kg)  | 
 <5 ppm  |  
| 
 PH  | 
 2.5 - 2.6    |  
| 
 Specific gravity  | 
 not more then 1.28g/cm3         |  
| 
 Loss on drying  | 
 not more then 0.3%  |  
| 
 Particle size      | 
 95% pass 200 mesh  |  
| 
 Solubility   | 
 Approximate 20g/L (60celsius degree)  |  
| 
 Microbiologicals  |  
| 
 Total aerobic counts               | 
 not more then 100 cfu/g  |  
| 
 Mould/Yeasts                  | 
 not more then 100 cfu/g  |  
| 
 E. Coli                                   | 
 Negative    |  
| 
 Salmonella  | 
 Negative    |  
| 
 Staphylococcus aureus    | 
 Negative    |    | 
                   
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