Poly(vinylsulfonic acid) sodium salt, 25% solution in water, also known as PVSA, is a highly water-soluble anionic polymer used in ion-exchange research, dispersions, water-based coatings, adhesives, catalyst support studies, and specialty aqueous formulation work.
Synonyms / related names: PVSA; sodium poly(vinylsulfonate); poly(vinylsulfonic acid) sodium salt; poly(vinyl sulfonate), sodium salt.
This product has a listed molecular weight range of 4,000-6,000 and is supplied as a 25% aqueous solution for easy incorporation into water-based systems. Its sulfonate functionality provides ionic character and charge density useful in applications involving charged surfaces, aqueous stabilization, and polymeric electrolyte behavior.
Researchers, formulators, and industrial users may use poly(vinylsulfonic acid) sodium salt in ion-exchange materials, conductive or ion-containing coatings, catalyst support research, dispersants, charge-modifying additives, water treatment studies, and hydrophilic coating or adhesive systems.
Key Properties
- Water-soluble anionic polymer
- CAS Number: 9002-97-5
- Product Number: 04392
- Synonym: PVSA
- Molecular Weight: 4,000-6,000
- 25% solution in water
- Refractive Index: 1.389
- Sulfonate-functional polymer for aqueous formulation work
- Useful in ion-exchange, dispersant, and charge-modifying systems
Applications
Ion-Exchange & Electrochemical Research
Poly(vinylsulfonic acid) sodium salt may be evaluated in ion-exchange, electrolyte, and electrochemical research where sulfonate functionality and ionic polymer behavior are important.
Catalyst Support Studies
PVSA may be used in catalyst support and polymeric acid system research where sulfonate-containing polymers are evaluated for ionic interactions or support behavior under defined conditions.
Coatings & Adhesives
This water-based polymer solution may be used in coatings and adhesive formulation work where hydrophilicity, charge density, and interaction with compatible surfaces are relevant performance considerations.
Water Treatment & Charge Modification
PVSA may be evaluated as a dispersant or charge-modifying polymer in water-treatment and aqueous process studies involving charged particles, surfaces, or colloidal systems.
Dispersions & Stabilizers
The sodium salt form may be used in aqueous dispersions and stabilizer systems where a water-soluble anionic polymer is needed to help manage particle, pigment, or emulsion stability.
Solubility & Compatibility Considerations
- Supplied as a 25% aqueous solution
- Highly water-soluble anionic polymer
- Sulfonate functionality can influence ionic strength, charge density, and interaction with charged surfaces
- Compatibility depends on pH, salts, metal ions, cationic polymers, binders, surfactants, and other formulation components
- Evaluate compatibility with pigments, fillers, substrates, and processing conditions before scale-up
Final performance should be confirmed under the user’s specific application conditions, including concentration, pH, ionic strength, water quality, substrate chemistry, and end-use requirements.
Preparation Tips
- Mix before use to support uniform solution handling
- Add gradually to aqueous systems with appropriate agitation
- Control pH and ionic strength when dispersion stability or charge interaction is important
- Confirm compatibility with salts, binders, pigments, fillers, and cationic additives before use
- Run small-scale formulation and stability trials before production or process transfer
Handling & Storage
- Store at room temperature
- Keep container tightly closed when not in use
- Exercise normal care during handling
- Use good ventilation and standard laboratory or industrial safety practices
- Wear protective gloves and safety glasses when appropriate
- Refer to the Safety Data Sheet before handling
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FAQ
Click a question to expand.
1. What is Poly(vinylsulfonic acid) sodium salt, 25% solution in water used for?
Poly(vinylsulfonic acid) sodium salt is used in ion-exchange research, dispersions, water-based coatings, adhesives, catalyst support studies, charge-modifying additives, and specialty aqueous formulation work.
2. What is the molecular weight of this PVSA product?
The product page lists a molecular weight range of 4,000-6,000.
3. What is the concentration of this product?
This product is supplied as a 25% solution in water.
4. Is Poly(vinylsulfonic acid) sodium salt water-soluble?
Yes. The product description identifies PVSA as a highly water-soluble polymer supplied in aqueous solution.
5. How should Poly(vinylsulfonic acid) sodium salt be stored?
Store the product at room temperature with the container tightly closed. Review the Safety Data Sheet for complete storage, handling, and personal protective equipment guidance.
Safety & Documentation
Poly(vinylsulfonic acid) sodium salt, 25% solution in water should be handled using normal precautions and standard laboratory or industrial safety practices. The product page lists handling as “exercise normal care” and hazards as “harmless-use normal precautions.” Refer to the Safety Data Sheet (SDS) and product specification for complete handling, storage, hazard, and technical information.
