Quality standards of lysine  

Item

HCL -lysine 98.5%

L-lysine 70%

Description

pale to light brown

granule,no

unacceptable oder.

Brown or light brow crystals

Content %

≥98.5

≥55

Loss on Drying %

≤1.0

≤3.0

AS mg/kg

≤0.0002

≤3

Ammoniumate (as NH4) %

≤0.04

≤1.0

Heavys Metals  %

≤0.003

≤20

Specific Optical Rotation[α] D

+18.0º ~ +21.5º

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PH(1+10 water solution)

5.0 ~ 6.0

3.0-6.0

Residue on igintion %

≤0.3

≤4.0