Description

Benzenesulfonic Acid, Hydroxy-, Polymer With Formaldehyde And 4,4'-Sulfonylbis[Phenol], Sodium Salt is a high-performance, water-soluble polymeric sulfonate. This specialty chemical is engineered to deliver exceptional thermal stability and dispersing properties, making it a critical component in advanced material formulations. It is primarily sought after by manufacturers in the polymer, coating, and specialty chemical industries for applications requiring robust performance under demanding conditions.

Application

• As a dispersing agent and stabilizer in high-performance polymer emulsions and latexes.
• Key component in the formulation of heat-resistant and flame-retardant coatings and composites.
• Used as a dye-leveling agent and dispersant in textile processing and dyeing.
• Functional additive in construction chemicals, such as concrete admixtures and water-reducing agents.
• As a scale inhibitor and dispersant in industrial water treatment systems.
• Potential use as an ion-exchange resin precursor or membrane material.
• Additive in paper sizing and coating formulations to improve wet-strength and printability.
• Intermediate for the synthesis of other specialty sulfonated polymers with specific ionic characteristics.

Basic Information

Item	Details
Product Name	Benzenesulfonic Acid, Hydroxy-, Polymer With Formaldehyde And 4,4'-Sulfonylbis[Phenol], Sodium Salt
CAS No.	94334-55-1
Molecular Formula	(C18H13NaO7S2)n (Polymeric)
Molecular Weight	Polymeric (Contact for details)
Synonyms	Phenol, 4,4'-sulfonylbis-, polymer with formaldehyde and hydroxybenzenesulfonic acid monosodium salt; Sodium salt of phenol-formaldehyde-sulfonated polymer; Sulfonated phenol formaldehyde resin, sodium salt; Poly(sulfonated phenol-formaldehyde); SPF Resin (Sulfonated Phenol Formaldehyde); Water-soluble phenolic resin sulfonate; Condensation polymer of hydroxybenzenesulfonic acid, formaldehyde, and bisphenol S; Thermosetting sulfonate polymer.
EINECS	Contact for details

Quality Control

Our production of Benzenesulfonic Acid, Hydroxy-, Polymer With Formaldehyde And 4,4'-Sulfonylbis[Phenol], Sodium Salt adheres to a rigorous quality management system. Each batch is tested against stringent in-house specifications to ensure consistent performance, including parameters for sulfonation degree, molecular weight distribution, and ionic content. Certificates of Analysis (COA) documenting purity, physical properties, and key performance indicators are available upon request to support your quality assurance protocols.

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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture which may affect product performance.

Specification

Item	Specification
Appearance	Light yellow to brown powder or granules
Identification (IR)	Conforms to structure
Assay (as Sulfonate)	Min. 90%
pH (1% Solution)	7.0 - 10.0
Moisture Content	Max. 5.0%
Ash Content	15.0 - 25.0%
Solubility in Water	Completely soluble

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