*This article is about hydrogel powder, sodium polyacrylate, superabsorbent polymer.

Hydrogel powder: sodium polyacrylate

Sodium polyacrylate, as a type of superabsorbent polymers, can absorbent plenty 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, it’s mainly application is the absorbent material in paper diaper. Actually sodium polyacrylate is widely used in every aspects of people’s life.

Basic info

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.

Mainly uses

Common uses
Such as ice pack, fragrance carrier, water beads, growing toys and so on.

Personal care
Such as paper diaper, sanitary napkin, nursing mat and so on.

Industrial grade
waste liquid control, excreta collection and so on.

Interested in super aborbent polymer?