白色结晶粉末。熔点202-213℃（分解），相对密度1.525，比旋光度+23.5°-+25.5°。1g溶解于约3ml水中，几乎不溶于乙醇、乙醚。水溶液的石蕊试验呈酸性。

    
        
            
            
Item
            
            
            
Standard
            
        
        
            
            
Appearance
            
            
            
White crystals or crystalline powder
            
        
        
            
            
Specific rotation[α]20/D(C=10,2mol/L HCL)
            
            
            
+25.2 to +25.8°
            
+31.4 to +32.2°
            
calc.as glutamic acid
            
        
        
            
            
State of solution
            
(Transmittance)
            
            
            
Clear and colorless
            
Not less than 98.0%
            
        
        
            
            
Chloride (Cl)
            
            
            
19.11 to 19.50%
            
        
        
            
            
Ammonium (NH4)
            
            
            
Not more than 0.02%
            
        
        
            
            
Sulfate (SO4)
            
            
            
Not more than 0.020%
            
        
        
            
            
Iron (Fe)
            
            
            
Not more than 10ppm
            
        
        
            
            
Heavy metal(Pb)
            
            
            
Not more than 10ppm
            
        
        
            
            
Arsenic(As2O3)
            
            
            
Not more than 1ppm
            
        
        
            
            
Other amino acids
            
            
            
Chromatographically 
            
Not detectable
            
        
        
            
            
Loss on drying
            
            
            
Not more than 0.50%
            
        
        
            
            
Residue on ignition(sulfated)
            
            
            
Not more than 0.10%
            
        
        
            
            
Assay
            
            
            
99.0 to101.0%
            
        
        
            
            
pH
            
            
            
1.0 to 2.0
            
        
    

危险品标志  Xi 
危险类别码  36/37/38 
安全说明  36/37/39-26-22 危险品标志  Xi 
危险类别码  36/37/38 
安全说明  36/37/39-26-22 
WGK Germany  3
 

WGK Germany  3
 

代盐剂，增香剂，营养剂，食物增补剂。
密封保存