Industrial grade 30%、18% POLYSTYRENE SULFONIC ACID CAS 28210-41-5 PSSA

Synonyms:Polystyrene sulfonic acid
Poly(styrenesulfonic acid)
Poly(4-styrenesulfonic acid)
PSSA
PSS
Poly(p-styrenesulfonic acid)
Poly(styrene-4-sulfonic acid)
Molecular Formula: C8H8O3S
Molecular Weight: 184.21
HS Code: 3903900000
Grade: Industrial grade30%、18%
Hazard Class:Class8

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Model:
28210-41-5
Brand:
futurechem
Code:
28210-41-5

Product Description

Certificate of Analysis-COA

Molecular weight 75000, solid content 30

No.	Test Items	Specification	Test Result	Unit	Conclusion
1	Iron	≤20	1.6	ppm	OK
2	Free Sulfuric Acid	≤5	2.29	Wt%	OK
3	Solids	29-31	30.2	Wt%	OK
4	Sulfur	3.0-7.0	5.6	Wt%	OK
5	Brookfield Viscosity	75-500	144	cps	OK
6	Color (Gardner)	≤10	7.5	Gardner	OK
7	pH	≤2	0.18	N.A	OK

Molecular weight 75000, solid content 16

Test	Specification	Result
Appearance	Light yellow viscous liquid	Conforms
Solid content, wt%	16–20	16.78
pH	＜7	≈1
Na, ppm	≤100	Conforms

Molecular weight 65000-70000, solid content 30

Test	Specification	Result
Appearance	Light yellow to Brownish yellow liquid	Conforms
Average molecular weight (Mw)	65000–70000	Conforms
Solid content, wt%	29–32	29.16
pH	0–2	Conforms
Sulphate, ppm	≤200	Conforms
Sodium (Na), ppm	≤100	Conforms

Applications

1. Conductive Polymer Doping (PEDOT:PSS) The essential dopant and template for PEDOT:PSS conductive polymer systems. High sulfonic acid content and low inorganic salt levels deliver stable, reproducible conductivity for organic electronics, flexible displays, sensors and antistatic devices.

2. Water Treatment Dispersants An effective scale inhibitor and dispersant for cooling, boiler and process water systems. High charge density disperses scale-forming salts and fouling particles, protecting equipment and extending service life.

3. Antistatic & Functional Coatings A transparent antistatic and anti-fog coating material for films, glass and optical surfaces. Excellent film-forming properties deliver durable static control and surface functionality.

4. Ion Exchange & Membrane Materials A water-soluble sulfonated polystyrene for ion exchange applications and proton-conducting membrane development. High exchange capacity and consistent quality support reproducible performance in separation and energy applications.

5. Pigment & Dispersion Applications A strong polymeric dispersant for pigments, dyes and fine particles in coatings and ink systems. Prevents aggregation and improves dispersion stability in demanding formulations.

6. Laboratory & Specialty Applications A standard polyelectrolyte for research, analysis and specialty applications. Consistent molecular weight and high purity deliver accurate, repeatable results.

Production Line

We operate 10+ production lines, backed by a well-stocked raw material warehouse.

Our workshop is equipped with automated machinery — ensuring high consistency and precision on every order, from trial samples to full container loads.

Every order follows a standardized workflow. Key quality control points are set at every stage.

Factory Area

Standardized Process Flow

Production Capacity

Located in Shandong, our factory is approximately 300km from Qingdao Port, enabling fast and cost-effective delivery to customers worldwide.

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Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.