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L-Glutamic Acid HCL
|
Item |
Standard |
|
Appearance |
White crystals or crystalline powder |
|
Assay |
99.0%-101.0% |
|
PH |
1.0-2.0 |
|
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% |
食品添加剂
