L-Arginine base USP30

White diamond crystallization, Nutrition enriching substance; Seasoner
Items
Standard
Results
Appearance
White crystals or crystalline powder
Qualified
Specific rotation[a]
D
20
°
+26.3°~+27.7°
+27.2°
Solubility
Freely soluble in water,sparingly soluble in alcohol and insoluble in ether
Qualified

Identification
The ir spectrum of sample matches with that obtained with standard
Qualified

Chloride(Cl)
≤0.05%
0.014%
Sulfate(SO4)
≤0.030%
0.012%
Iron(Fe)
≤30PPm
5PPm
Heavy metals(Pb)
Arsenic(AS2O3

)
≤15PPm
≤1PPm
3PPm
0.1PPm
Organic volatile impurities
Meets the requirements
Qualified
Loss on drying
≤0.5%
0.18%
Residue on ignition
≤0.30%
<0.1%
Assay
99.0~101.5%
99.8%
CONCLUSION: THIS PRODUCT FUIFULS USP30.
Checker: Dong Weili Analyst: Yu Jiang

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