Test Items

USP 40 Standard specifications

Appearance

White crystalline powder

Solubility

Soluble in water

Assay (drying basis)

98%~102%

Identification

A.Infrared Absorption B: Identification

tests-General,Chloride and Potassium: meets the requirements C: The retention time of the glucosamine peak of the sample solution corresponds to that of the standard solution,as obtained in the Assay. D: Sulfate:In the test for Content of Sulfate,after the addition of barium chloride TS a white precipitate is formed.

Specification Rotation

47°- 53°

PH value(2%.25°)

3.0~5.0

Loss on drying

≤1.0%

Residue on Ignition

26.5%~31.0%

Sulfate

15.5%-16.5%

Chloride

11.1%-12.8%

Sodium

Meet requirement

Heavy metal

≤10ppm

Arsenic

≤3μg/g

Lead

≤3ppm

Cadmium

≤1ppm

Mercury

≤0.1ppm

Mesh size

80 mesh

Residue of Ethanol

≤5000ppm

Bulk density

≥0.5g/ml

Microbial Limits

Totalaerobicmicrobial count

≤1000cfu/g

Yeast Mold

≤100cfu/g

E-Coli

Negative

Salmonella

Negative