Description

Formaldehyde, Reaction Products With 4,4'-Sulfonylbis[Phenol] Disodium Salt is a specialized polymeric sulfonate derivative synthesized from formaldehyde and bisphenol S. This compound matters as a high-performance, water-soluble polymer intermediate, offering excellent thermal stability and ionic character for advanced material synthesis. It is primarily needed by manufacturers in the water treatment, specialty polymer, and advanced resin industries seeking to enhance product durability and functionality.

Application

• As a key monomer or cross-linking agent in the synthesis of sulfonated polyarylether sulfones for high-temperature membrane applications.
• In the formulation of ion-exchange resins and adsorbents for water purification and demineralization processes.
• As a polymeric dispersant or rheology modifier in advanced ceramic and pigment suspensions.
• For the production of heat-resistant and flame-retardant engineering plastics and composites.
• In the development of specialty coatings and adhesives requiring enhanced chemical and thermal resistance.
• As a potential intermediate in pharmaceutical synthesis for creating sulfonated polymer carriers.

Basic Information

Product Name	Formaldehyde, Reaction Products With 4,4'-Sulfonylbis[Phenol] Disodium Salt
CAS No.	92969-86-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(oxy-1,4-phenylenesulfonyl-1,4-phenyleneoxy(1,4-phenylenemethylene-1,4-phenylene)), disodium salt; Bisphenol S-Formaldehyde Polymer, Sulfonated; Sulfonated Poly(Bisphenol S-co-Formaldehyde); Phenol, 4,4'-sulfonylbis-, polymer with formaldehyde, disodium salt; Poly(bisphenol S formaldehyde sulfonate); SPES (Sulfonated Polyethersulfone) precursor; Disodium 4,4'-sulfonylbis[phenol]-formaldehyde polymer; Formaldehyde-Bisphenol S Copolymer Sulfonate
EINECS	Contact for details

Quality Control

Our Formaldehyde, Reaction Products With 4,4'-Sulfonylbis[Phenol] Disodium Salt is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, sulfonation degree, molecular weight distribution, and ionic content. Certificates of Analysis (COA) detailing all relevant specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Off-white to light tan powder or granules
Identification (IR)	Conforms
Assay (Sulfonate Content)	Contact for details
Moisture Content	≤ 5.0%
pH (in solution)	Contact for details
Ash Content	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.