Description

Phosphoric Acid 2-(Acryloyloxy)Ethyl Ester is a reactive monomer featuring both a phosphate group and an acrylate moiety, making it a versatile building block for advanced polymer synthesis. This bifunctional compound is essential for introducing permanent hydrophilic, adhesive, and cross-linking properties into polymer matrices. It is primarily sought after by manufacturers in the dental materials, coatings, adhesives, and specialty resin industries for its ability to enhance material performance and functionality.

Application

• Dental Restorative Materials: A key monomer in dental adhesives, cements, and composite resins to improve bonding to tooth enamel and dentin.
• UV-Curable Coatings & Inks: Used as a functional cross-linker to impart adhesion to difficult substrates like metals and plastics.
• Adhesives & Sealants: Enhances the wetting and bonding strength of acrylic-based structural and pressure-sensitive adhesives.
• Hydrogel Synthesis: Serves as a hydrophilic co-monomer for creating water-absorbent polymers used in biomedical and personal care applications.
• Flame Retardant Additives: Incorporated into polymer backbones to provide inherent flame-retardant characteristics.
• Fiber & Textile Treatment: Used as a grafting agent to modify surface properties of fibers for improved dyeability and moisture management.

Basic Information

Product Name	Phosphoric Acid 2-(Acryloyloxy)Ethyl Ester
CAS No.	32120-16-4
Molecular Formula	C5H9O6P
Molecular Weight	196.10 g/mol
Synonyms	2-Hydroxyethyl methacrylate phosphate; HEMA phosphate; Ethylene glycol methacrylate phosphate; 2-(Methacryloyloxy)ethyl dihydrogen phosphate; Mono(2-methacryloyloxyethyl) phosphate; PENTA monomer (related phosphate ester); Adhesive monomer; Dental adhesive monomer; Reactive phosphate ester
EINECS	Contact for details

Quality Control

Our Phosphoric Acid 2-(Acryloyloxy)Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, reactivity, and performance for demanding applications such as dental and medical materials. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air, moisture, or light may lead to polymerization or hydrolysis. Keep away from heat and incompatible materials such as strong bases and initiators.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Acid Value	Contact for details
Refractive Index (n20D)	~1.460 - 1.470
Density (20°C)	~1.30 g/cm³
Inhibitor (MEHQ)	100 - 300 ppm

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