1. Characteristics: white crystalline powder

2. Specific rotation: +50°~+52°

3. Transm: more than 90%(10%watersolut,450nm)

4. Content: 98.0%-102.0%

5. Sulfates: 15.5%-16.5%

6. Loss on drying: ≤0.5%

7. Residue on igniton: 27.0%-29.0%

8. PH: 3.0-5.0

9. Chloride: 11.1%-12.8%

10. Arsenic: ≤0.5ppm

11. Heavy Metals: ≤10ppm

12. Sodium: No precipitate is formed

13. Organic volatile impurities: Meets the requirements

14. Total plate count: ≤1000cfu/g

15. Yeast&Mold: ≤100cfu/g

16. E.Coli: Negative

17. Salmonelta: Negative

Glucosamine sulfate potassium