无色片状结晶。用一般速度加热时能升华，298℃时分解(封管，急热)。

    
        
            
            
Item
            
            
            
Standard
            
        
        
            
            
Appearance
            
            
            
White powder
            
        
        
            
            
State of solution
            
(Transmittance)
            
            
            
Not less than 95.0%
            
        
        
            
            
Chloride (Cl)
            
            
            
Not more than0.04%
            
        
        
            
            
Heavy metal(Pb)
            
            
            
Not more than 10ppm
            
        
        
            
            
Arsenic(As2O3)
            
            
            
Not more than 2ppm
            
        
        
            
            
Loss on drying
            
            
            
Not more than 0.20%
            
        
        
            
            
Residue on ignition(sulfated)
            
            
            
Not more than 0.20%
            
        
        
            
            
Assay
            
            
            
98.0 to101.0%
            
        
    

安全说明  22-24/25 
WGK Germany  3
 

生化研究   可用于营养剂与药物合成
 
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