L-Arginine HCL

USP40

AJI92

EP6

Assay

98.5%～101.5%

99.0-101.0%

98.5-101.0%

PH

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4.7-6.2

Specific rotation[a]D20

+21.4°~ +23.6°

+22.1°-+22.9°

+21.0°-+23.5°

Specific rotation[a]D25

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Transmittance(T430)

/

≥98.0%

clear & colorless ≤BY6

Chloride(Cl)

16.5% ~17.1%

16.58-17.00%

Ammonium(NH4)

≤0.02%

≤0.02%

Sulfate(SO4)

≤0.03%

≤0.02%

≤0.03%

Iron(Fe)

≤10PPM

≤10PPM

Heavy metals(Pb)

≤20ppm

≤10PPM

≤10PPM

Arsenic

≤1PPM

/

Other amino acids

/

conform

/

Ninhydrin-positive substances

/

/

conform

Loss on drying

≤0.2%

≤0.20%

≤0.50%

Residue on ignition

≤0.1%

≤0.10%

≤0.10%