Description

Ethylenesulfonic Acid is a versatile organic acid monomer characterized by its strong acidity and reactive vinyl sulfonate group. This compound is a critical building block in the synthesis of advanced polymers and functional materials, offering excellent water solubility and ionic character. It is essential for manufacturers in the water treatment, specialty polymer, and pharmaceutical intermediate sectors seeking to develop products with enhanced performance and stability.

Application

• Polymer Synthesis: Key monomer for producing sulfonated polymers, ion-exchange resins, and polyelectrolytes with high cation-exchange capacity.
• Water Treatment Chemicals: Used in the manufacture of scale inhibitors, dispersants, and antiscalants for industrial water systems.
• Textile & Leather Processing: Serves as a cross-linking agent and modifier for dyes and tanning agents to improve fastness and material properties.
• Pharmaceutical Intermediates: Employed in the synthesis of active pharmaceutical ingredients (APIs) and drug delivery systems requiring sulfonic acid functionality.
• Oilfield Chemicals: Component in formulations for enhanced oil recovery (EOR) and as a viscosity modifier in drilling fluids.
• Personal Care Products: Used in the production of hair styling resins and other cosmetic polymers for its film-forming and holding properties.

Basic Information

Product Name	Ethylenesulfonic Acid
CAS No.	1184-84-5
Molecular Formula	C2H4O3S
Molecular Weight	108.12 g/mol
Synonyms	Ethenesulfonic Acid; Vinylsulfonic Acid; 2-Sulfoethylene; Ethylene Sulfonic Acid; Ethylenesulphonic Acid; Vinyl Sulfonate Monomer; ESA; 2-Ethenesulfonic Acid
EINECS	214-666-6

Quality Control

Our Ethylenesulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. We provide full traceability and Certificates of Analysis (COA) 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 controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature and strong acid properties, the container must be kept tightly sealed and separated from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0 %
Water Content (KF)	≤ 3.0 %
Density (at 20°C)	1.30 - 1.45 g/mL
pH (10% solution)	< 2.0

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