 |
| Specification
For Sodium Hyaluronate Powder |
| CAS NO:
9067-32-02 |
| FORMULA: (C14H20NNaO11)n |
| PACKING:
1KG/BOTTLE or 25KG/DRUM |
|
Test Item
|
Officinal grade |
Topical grade |
Appearance
|
White Powder
|
White Powder
|
Character
|
Colorless, non Smell, easy dissolve
in water, and difficult dissolve in organic solvent,
easy dampen.
|
Colorless, non Smell, easy dissolve
in water, and difficult dissolve in organic solvent,
easy dampen.
|
Glucuronic acid
|
>42%
|
>40% |
Protein content
|
<0.3%
|
<1.0% |
PH
|
6.0 – 7.5
|
6.0 –8.0 |
Loss on drying
|
<8%
|
<10% |
Heavy metal
|
<20PPm
|
<20PPm |
Molecular weight
|
>1.2 Mda
|
>1.0 Mda |
Assay
|
>90%
|
>80% |
Microbial contamination
|
<10/g
|
<50/g |
|
|
|
|
| Specification
For Sodium Hyaluronate (LMW 1% solution topical
grade) |
Description
|
Colorless, transparent |
Glucuronic Acid
|
>0.48% |
PH
|
6.0 - 8.0 |
Sodium Hyaluronate
|
>1% |
Protein
|
<0.001% |
Kinematic Viscosity (mm2/s)
|
About 10.0mm2/s |
Bacteria Counts
|
<10CFU/g |
Light Absorption (A660 1cm 1% solution)
|
<0.01 |
Preservative (Phenoxy Ethanol)
|
<0.8% |
|
|
|
|
| Specification
For Sodium Hyaluronate (HMW 1% solution topical
grade) |
Description
|
Colorless, transparent |
Glucuronic Acid
|
>0.48% |
Molecular
|
>1.0 Mda |
PH
|
5.0 - 8.0 |
Sodium Hyaluronate
|
>1% |
Protein
|
<0.001% |
Kinematic Viscosity (mm2/s)
|
About 10.0mm2/s |
Bacteria Counts
|
<30CFU/g |
Light Absorption (A660 1cm 1% solution)
|
<0.01 |
Preservative (Phenoxy
Ethanol)
|
<0.8% |
|
Usage:
Its main biological role is water retention and
lubricity. It is one of the best natural moisturizing
components used in cosmetics and is recommended
in all kinds of skin-care, hair-care products. The
incorporated quantities are about 0.05- 0.5%. |
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