Sodium acetylated hyaluronate has the advantages of high skin affinity, efficient and lasting moisturizing, softening stratum corneum, strong skin softening, enhancing skin elasticity, improving skin roughness,etc. It is refreshing and non-greasy, and can be widely used in cosmetics such as lotion,mask and essence.
Molecular weight |
Characteristic |
|---|---|
＞2.0 MDa |
White granules or powder |
1.6~2.0 MDa | |
1.0~1.6 MDa | |
0.6~1.0 MDa | |
0.1~0.6 MDa |
White powder |
0.01~0.1 MDa | |
＜10 KDa |
Item |
Specification |
|
|---|---|---|
Identification |
Color reaction of glucuronic acid |
Qualitative reaction |
Infrared absorption spectra |
Characteristic absorption |
|
Na+ Identification reaction |
Qualitative reaction |
|
Appearance |
White to yellowish granules or powders |
|
Acetyl Content |
23.0 % ~ 29.0% |
|
Transparency |
≥99.0% |
|
pH |
5.0 ~ 7.0 |
|
Protein |
≤0.10% |
|
Intrinsic Viscosity |
0.50 ~ 2.80 dL/g |
|
Loss on Drying |
≤10.0% |
|
Residue on Ignition |
11.0 % ~ 16.0% |
|
Heavy Metals (as Pb) |
≤20 ppm |
|
Arsenic |
≤2 ppm |
|
Nitrogen content |
2.0 % ~ 3.0% |
|
Bacteria Count |
≤100 CFU/g |
|
Molds & Yeast |
≤10 CFU/g |
|
Escherichia coli |
Negative |
|
Staphylococcus Aureus |
Negative |
|
Pseudomonas Aeruginosa |
Negative |
|