Product Name

Sodium Hyaluronate (Cosmetic grade)

Quantity

10KGS/DRUM

Shelf Life

2 years

Items

Limits

Description

white to off-white powder

Infrared Absorption

The infrared absorption spectrum should be consistent

Sodium salt identification reaction

Should show the positive reaction of sodium salt

Molecular weight

8.0 ~ 15.0 ×105Dalton (customize)

Intrinsic viscosity value

17.2-23.6

Assay of Sodium Hyaluronate %

≥92

Glucuronic acid    %

≥45

Particle Size

100% thru 80 Mesh

Absorbance

≤0.25

Loss on drying%

≤10

Residue on Ignition(500-600°)

≤20%

PH (0. 1% Solution  )

6.0 ~ 7.5

Bulk density g/ml

≥0.6

Heavy Metal

≤20ppm

Lead (Pb)

≤3ppm

Arsenic (As)

≤2ppm

Cadmium

<2ppm

Mercury (Hg)

≤0. 1ppm

Proteins %

≤0. 1

Transparency%( 0. 1% Solution)

≥98.5

Total Plate Count

≤1000cfu/g

Yeast and Mold

≤100cfu/g

Staphylococcus

Negative

Salmonella

Negative

E.Coli

Negative

Storage Condition

Stored in cool and dry place

Conclusion:According to the Enterprise standard.