Chemical name:
Zinc Citrate
Molecular formula:
Zn3(C6H5O7)2·2H2O
Molecular weight :
610.37
Physical properties:
White or light yellowish powder, odorless; slightly soluble in water and soluble in dilute mineral acid and hydroxides.
Usage:
Nutrition enhancer, medicinal toothpaste additives, it is effective in removing foul breath, tobacco stains and dental calculus, and diminishing inflammation.
Quality standard:
Item
Usp36
Appearance
White powder
Identification A,B
Meets the requirements
Assay(on the dried basis),%
≥31.3
As
≤3 ppm
Cd
≤5 ppm
Pb
≤10 ppm
Sulfate,%
≤0.05
Chloride,%
Loss on drying(105°for 2 h),%
≤1.0
Total aerobic microbial count
≤103 cfu/g
Yeasts and molds count
≤102 cfu/g
Escherichia coli
Packing:
In 25kg composite plastic woven/ paper bag with PE liner.
Storage and transport:
To be stored in a cool, ventilative and dry warehouse. Kept away from
moisture, heat, acids and poisonous substances. Handled with care, so as to avoid damage to the packing bags.