Description

Bis[2-(Acryloyloxy)Ethyl] Hydrogen Phosphate CAS NO 40074-34-8 is a specialized organophosphate monomer featuring dual acrylate functionalities. This compound is valued for its ability to act as a reactive adhesion promoter and crosslinking agent, enhancing the performance of polymer matrices. It is primarily needed by manufacturers in the coatings, adhesives, and advanced composite materials industries seeking to improve surface bonding and material durability.

Application

• Adhesion Promoter for Coatings: Enhances the bonding of paints, primers, and industrial coatings to metal, plastic, and glass substrates.
• Crosslinking Monomer for UV-Curable Resins: Used in formulations for inks, varnishes, and 3D printing resins to improve hardness and chemical resistance.
• Dental & Biomedical Composites: Serves as a key component in restorative materials and bone cements for improved mechanical strength and biocompatibility.
• Flame Retardant Additive: Incorporated into polymers like polyurethanes and acrylics to impart flame-retardant properties.
• Fiberglass & Composite Reinforcement: Improves the interfacial adhesion between glass fibers and resin in composite materials.
• Electronic Encapsulants: Used in potting compounds and sealants to protect sensitive electronic components.

Basic Information

Product Name	Bis[2-(Acryloyloxy)Ethyl] Hydrogen Phosphate
CAS No.	40074-34-8
Molecular Formula	C10H15O8P
Molecular Weight	294.20 g/mol
Synonyms	Di(2-acryloyloxyethyl) hydrogen phosphate; Bis(2-acryloyloxyethyl) phosphate; 2-Propenoic acid, 1,1'-[phosphinicobis(oxy-2,1-ethanediyl)] ester; Acrylic acid, diester with 2-hydroxyethyl hydrogen phosphate; PENTAERYTHRITOL TRIACRYLATE PHOSPHATE (common trade name association); PETA phosphate; Reactive phosphate acrylate; Adhesion promoter monomer P-1 (trade name variant).
EINECS	254-789-8

Quality Control

Our production of Bis[2-(Acryloyloxy)Ethyl] Hydrogen Phosphate adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analysis, including purity assay and impurity profiling. A Certificate of Analysis (COA) detailing specific results for identity, assay, and critical impurities is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 15-25°C (59-77°F). Due to its hygroscopic (moisture-sensitive) and easily oxidized nature, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) after opening to maintain product integrity and prevent polymerization.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Acid Value	Contact for details
Water Content (KF)	≤ 0.5%
Inhibitor (MEHQ)	200 - 500 ppm
Viscosity (25°C)	Contact for details

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