What is poly(acrylic acid) sodium salt used for?

This polymer is commonly used as a water-soluble anionic polymer in formulation and materials work, including dispersant and viscosity-modification applications.

Is sodium polyacrylate pH-responsive?

Yes. The polymer’s carboxylate groups can change their ionization state with pH, affecting solubility, chain expansion, and solution behavior in water.

How does molecular weight affect behavior?

Molecular weight influences viscosity and performance in solution. Lower molecular weight grades typically show lower viscosity at the same concentration than higher molecular weight grades.

Does it dissolve directly in water?

Poly(acrylic acid) sodium salt is generally water-soluble, but dissolution rate can depend on concentration, mixing, and ionic strength. Gradual addition to water with stirring can help reduce clumping.

Poly(acrylic acid), sodium salt, powder [MW ~ 6,000]

Product Number:

CAS #

CAS # Product #

06567

2594415

Size

Price

$118.45

Quantity

Bulk Request

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Product Specifications

Spec-06567.pdf

Linear Formula

[-CH2CH(CO2Na)-]n

Appearance

powder

Molecular Weight

~ 6,000

Synonyms

Safety Data Sheet (SDS)

SDS_06567.pdf

Handling

Exercise normal care

Storage

Store at room temperature

Hazards

Hazard Code

A2g

Product Description

Poly(acrylic acid), sodium salt is a highly water-soluble super-absorbent polymer that offers excellent dispersing, thickening, and stabilizing properties. Its ability to absorb and retain water makes it a valuable ingredient in superabsorbent materials, coatings, and pharmaceutical formulations.
PAANa is a water-soluble anionic polymer (polyelectrolyte). Used at low molecular weights as pigment dispersant and at higher molecular weights as a flocculant. Polymer can form complexes with poly(ethylene oxide) and with nucleotides.

Applications:

Superabsorbent Materials: Used in hygiene products, diapers, and agricultural water-retaining gels.

Coatings & Adhesives: Enhances adhesion, viscosity, and durability in water-based coatings.

Pharmaceutical & Medical Formulations: Functions as a controlled-release agent and bioadhesive polymer.

Detergents & Cleaning Products: Provides anti-redeposition and dispersion properties in liquid detergents.

Water Treatment & Industrial Uses: Acts as a scale inhibitor and dispersant in wastewater processing.

FAQs

Common questions about Poly(acrylic acid) sodium salt (MW ~6,000).

What is poly(acrylic acid) sodium salt used for?

This polymer is commonly used as a water-soluble anionic polymer in formulation and materials work, including dispersant and viscosity-modification applications.
Is sodium polyacrylate pH-responsive?

Yes. The polymer’s carboxylate groups can change their ionization state with pH, affecting solubility, chain expansion, and solution behavior in water.
How does molecular weight affect behavior?

Molecular weight influences viscosity and performance in solution. Lower molecular weight grades typically show lower viscosity at the same concentration than higher molecular weight grades.
Does it dissolve directly in water?

Poly(acrylic acid) sodium salt is generally water-soluble, but dissolution rate can depend on concentration, mixing, and ionic strength. Gradual addition to water with stirring can help reduce clumping.