Description

Vinylphosphonic Acid is a versatile organophosphorus monomer characterized by its reactive vinyl and phosphonic acid functional groups. This unique bifunctional structure makes it a critical building block for synthesizing advanced polymers and functional materials with tailored properties. It is essential for manufacturers in sectors requiring high-performance coatings, ion-exchange resins, and specialty adhesives.

Application

• Flame Retardant Additive: Used as a reactive component in polymers and coatings to impart durable flame-retardant properties.
• Metal Surface Treatment & Corrosion Inhibition: Acts as a key ingredient in formulations for metal pre-treatment, promoting adhesion and providing excellent corrosion resistance.
• Water Treatment & Ion-Exchange Resins: Serves as a functional monomer for producing chelating and ion-exchange resins used in water purification and metal recovery processes.
• Dental & Biomedical Materials: Employed in the synthesis of adhesive primers and cements for dental applications, and in creating biocompatible polymer coatings for medical devices.
• Adhesives & Binders: Enhances the bonding strength and durability of industrial adhesives, particularly on difficult-to-bond substrates like metals and ceramics.
• Photoresist & Electronic Chemicals: Utilized in the formulation of photoresists and other electronic materials for the semiconductor industry.
• Textile & Fiber Modification: Applied to modify fibers and textiles, improving properties such as flame retardancy, dyeability, and soil release.
• Scale Inhibitor: Functions as an effective scale inhibitor in industrial water systems, such as cooling towers and boilers.

Basic Information

Item	Detail
Product Name	Vinylphosphonic Acid
CAS No.	1746-03-8
Molecular Formula	C2H5O3P
Molecular Weight	108.03 g/mol
Synonyms	Ethenylphosphonic Acid; Phosphonoethene; VPA; Acrylic acid, 2-phosphono-; 2-Phosphonoacrylic acid; Vinylphosphonic acid monomer; Ethenephosphonic acid
EINECS	217-123-7

Quality Control

Our Vinylphosphonic Acid is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity, and impurity profile analysis, to ensure it meets exacting industry and customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Due to its nature as a strong acid/organic solvent, containers must be kept tightly sealed to prevent moisture absorption and degradation. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Density (at 20°C)	~1.35 g/cm³
Refractive Index (n20D)	~1.470

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