| 
 
   Properties: 
Reddish orange to reddish brown powder, odorless, almost tasteless. 
  Molecular formula: C4H2FeO4 
  CAS NO.: 141-01-5 
  Structural formula: 
 
   
 Specification: 
| 
 Item  | 
 Unit  | 
 Index  |  
| 
 Purity  | 
 %  | 
 97.0-101.0  |  
| 
 Arsenic (base on As)  | 
 PPM  | 
 ≤3  |  
| 
 Ferric  | 
 %  | 
 ≤2  |  
| 
 Lead  | 
 PPM  | 
 ≤10  |  
| 
 Loss on drying (105℃ 16h)  | 
 %  | 
 ≤1  |  
| 
 Mercury  | 
 PPM  | 
 ≤3  |  
| 
 Sulfate  | 
 %  | 
 ≤0.2  |   
  Usage: 
Antianemic with high ferric content, used in iron deficiency anemia, etc.  |