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Bis(2-(methacryloyloxy)ethyl) phosphate

CAS Number
32435-46-4
EC Number
251-040-2
Chemical Formula
C12H19O8P
Molecular Weight
322.25 g/mol

Description

Bis(2-(methacryloyloxy)ethyl) phosphate (CAS 32435-46-4 ) is a bifunctional phosphate monomer combining a reactive methacrylate group with a pendant phosphate moiety. It is recognized in procurement as bis(methacryloyloxyethyl) hydrogen phosphate. The phosphate functionality delivers flame retardancy and surface adhesion promotion directly within a polymerizable matrix. This eliminates the need for separate additive packages in many industrial formulations. In UV- and thermally-cured coatings, it acts as a reactive flame-retardant monomer that becomes chemically bound into the polymer network. This prevents plasticizer-style migration losses over time in the finished product. Adhesive and sealant formulators use it to improve bonding to metal and mineral substrates. The phosphate group coordinates with surface oxides to enhance adhesion without the requirement of a separate primer layer. In printing inks and packaging coatings, it supports substrate wetting and anchorage on difficult surfaces. This is particularly effective for applications involving aluminum foil and various treated films. Polymer compounders incorporate it as a co-monomer to introduce inherent flame retardancy into acrylic systems. These materials are frequently targeted at demanding electronics and construction applications. The product is supplied as a liquid, typically with an inhibitor added to prevent premature polymerization during storage. Technical grade is the standard commercial offering for most industrial users. Purity specifications are commonly confirmed by acid value and phosphorus content assays. Packaging ranges from small quantities for R&D sampling to bulk drum supply for large-scale industrial formulation. Contact us for supply of Bis(2-(methacryloyloxy)ethyl) phosphate Request Quote

Other Names (Synonyms)

Bis(methacryloyloxyethyl) hydrogen phosphate | bis(2-methacryloyloxyethyl) hydrogen phosphate | 2-Propenoic acid, 2-methyl-, phosphinicobis(oxy-2,1-ethanediyl) ester | 2-Propenoic acid, 2-methyl-, 1,1′-[phosphinicobis(oxy-2,1-ethanediyl)] ester | Methacrylic acid, 2-hydroxyethyl ester, hydrogen phosphate | 2-Hydroxyethyl methacrylate phosphate (2:1) | BIS(METHACRYLOYLOXYETHYL) PHOSPHATE

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Boiling Point221 °C(lit.)
Density1.28 g/mL at 25 °C(lit.)
Flash Point>230 °F
Refractive Indexn 20/D 1.47(lit.)

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29199000
Storage Class10 - Combustible liquids
WGK (Germany)3