a colorless or white crystalline substance of hexagon, or crystalline powder, easily soluble in acid and alkali, insoluble in water and organic solvents such as alcohol, ethyl ether
Quality Standards：
AJI97
Item
Specifications (AJI97 )
Appearance
White crystal or crystalline powder; tasteless
Assay, %
98.5~101.0
Specific rotation
-218°~ -224°
Loss on drying, %
≤0.2
Transmittance, %
≥98.0
Chloride (as Cl), %
≤0.02
Sulfate (as SO4), %
≤0.02
Ammonium as (as NH4), %
≤0.02
Iron (as Fe), %
≤0.001
Heavy Metals (as Pb), %
≤0.001
Arsenic (as As), %
≤0.0001
pH Value
5.0~6.5
Residue on ignition, %
≤0.1
Other amino acid
Conforms
Package and Transport：
This product is contained in a double-layer package, the inner layer being a sealed nonpoisonous polyethylene bag or alumin, and the outer layer being a paper board barrel. Each barrel contains a net weight of 25kg. Packages may be arranged in accordance with customer’s requirements.
Handle with care. Protect the product from sunshine or rain. Do not transport them together with poisonous or harmful goods. This product belongs to the non-dangerous category and can be transported as a general chemical product.
Storage：
Stored in dry, clean and ventilated places. In order to avoid pollution, it is prohibited to place this product together with poisonous or harmful substances. The expiry date is for two years.
