Description

Potassium 3-Sulphonatopropyl Acrylate is a water-soluble, anionic monomer featuring both a polymerizable acrylate group and a sulfonate functionality. This unique structure makes it a critical component for imparting permanent negative charge, hydrophilicity, and dispersing properties to polymeric materials. It is essential for manufacturers in the water treatment, personal care, and advanced coatings industries seeking to enhance performance through ionic modification.

Application

• Superabsorbent Polymers (SAPs): As a co-monomer to introduce sulfonate groups, improving absorption rate and capacity under load in hygiene products.
• Dispersants & Scale Inhibitors: Key building block for copolymers used in water treatment formulations to control scale and disperse suspended solids.
• Personal Care & Cosmetics: Used in the synthesis of fixative polymers for hairsprays and styling gels, providing humidity resistance and strong hold.
• Textile & Leather Auxiliaries: Employed in producing dyeing assistants, finishing agents, and emulsifiers for improved processing and product quality.
• Concrete Admixtures: Serves as a monomer for polycarboxylate ether (PCE) superplasticizers, enhancing workability and water reduction in concrete.
• Emulsion & Dispersion Polymers: Incorporated into acrylic and vinyl acetate copolymers to improve colloidal stability, rheology, and adhesion in paints and coatings.
• Ion-Exchange Resins & Membranes: Used to introduce strong acid cation exchange sites into polymeric matrices for separation and purification applications.
• Adhesives & Sealants: Modifies polymer properties to increase water solubility or dispersibility for specialized adhesive formulations.

Basic Information

Product Name	Potassium 3-Sulphonatopropyl Acrylate
CAS No.	31098-20-1
Molecular Formula	C6H9KO5S
Molecular Weight	232.30 g/mol
Synonyms	3-Sulfopropyl Acrylate Potassium Salt; Potassium Sulfopropyl Acrylate; SPAK; Acrylic Acid 3-Sulfopropyl Ester Potassium Salt; 2-Propenoic Acid, 3-Sulfopropyl Ester, Potassium Salt; Potassium 3-Sulfoprop-2-en-1-yl Sulfate (common misnomer); Acrylovloxypropane Sulfonic Acid Potassium Salt; SPMA
EINECS	Contact for details

Quality Control

Our Potassium 3-Sulphonatopropyl Acrylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry standards. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical specifications is provided with each shipment and is available upon request.

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 product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture. Store away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (10% aqueous solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 10 ppm
Residual Acrylic Acid (HPLC)	≤ 0.5%

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