*This article is about hydrogel powder, sodium polyacrylate, superabsorbent polymer.
Sodium polyacrylate, as a type of superabsorbent polymers, can absorb plenty of water quickly and turn to water gel.
Sodium polyacrylate is safety material, it's non-toxic, harmless, and has the character of natural degradation.
Therefore, its main application is the absorbent material in paper diapers. Actually, sodium polyacrylate is widely used in every aspect of people's life.
| Name | Sodium polyacrylate |
| Chemical formula | (C3H3KO2)n |
| CAS Number | 25608-12-2 |
| Molar mass | Variable |
| Appearance | white granule / transparent gel (before/after absorbing water) |
| Odor | imperceptible |
| Main applications | absorbing, blocking liquid with expanding |
| Common test items | absorption, absorbent rate, liquid permeability, residual monomer (as AA), particle size distribution. |
Common uses
Such as ice packs, fragrance carriers, water beads, growing toys, and so on.
Personal care
Such as paper diapers, sanitary napkins, nursing mat, and so on.
Industrial grade
waste liquid control, excreta collection, and so on.