Ethyl Acrylate (CAS 140-88-5) – Versatile Acrylic Monomer for High-Performance Polymers

Ethyl Acrylate, a premium acrylic ester monomer renowned for its exceptional reactivity and low viscosity, ideal for manufacturing flexible coatings, adhesives, and latex emulsions. With CAS 140-88-5, Ethyl Acrylate (EA) serves as a fundamental component in polymer synthesis across industries like textiles, paints, and personal care. Produced through advanced esterification processes, our Ethyl Acrylate delivers consistent purity and stability for reliable emulsion and solution polymerization results.

Product Overview

Ethyl Acrylate is a clear, colorless liquid exhibiting a sharp, acrid odor, prized for its role in crafting polymers with enhanced clarity, adhesion, and flexibility. As an essential acrylate building block, it facilitates the creation of materials that offer superior film-forming properties and chemical resistance in diverse formulations.

Key Specifications

Property Value/Description
CAS Number 140-88-5
Molecular Formula C₅H₈O₂
Molecular Weight 100.12 g/mol
Appearance Clear, colorless liquid
Purity ≥99.5% (typical)
Density 0.921-0.925 g/mL at 20°C
Boiling Point 99°C
Flash Point 15°C (closed cup)
Refractive Index 1.406 at 20°C
Solubility Slightly soluble in water (1.5 g/100 mL at 20°C); miscible with most organic solvents
Acid Value ≤0.01% (as acetic acid)
Inhibitor 10-100 ppm MEHQ (hydroquinone monomethyl ether)

These specifications guarantee high polymerization efficiency and low impurity levels for optimal end-product performance.

Applications and Uses

Ethyl Acrylate’s low glass transition temperature and rapid reactivity make it a preferred choice for formulations requiring softness and quick curing. Key applications encompass:

  • Paints and Coatings: Enhances film flexibility and gloss in emulsion paints, wood finishes, and automotive clear coats for improved weatherability.
  • Adhesives and Sealants: Boosts tackiness and cohesion in hot-melt and water-based adhesives for packaging and construction uses.
  • Textiles and Fibers: Improves dye uptake and durability in fiber treatments, nonwoven fabrics, and carpet backings.
  • Paper and Board: Provides binding strength and water repellency in surface sizing and coating for printing and packaging papers.
  • Personal Care and Detergents: Acts as a comonomer in superabsorbent polymers and emulsion thickeners for cosmetics and cleaning products.

Its adaptability positions Ethyl Acrylate as a vital ingredient for innovative, high-quality polymer solutions in modern manufacturing.

Features and Benefits

  • Superior Reactivity: Fast polymerization kinetics to streamline production and reduce energy use.
  • Low Viscosity: Facilitates easy handling and mixing in aqueous and solvent-based systems.
  • Broad Compatibility: Integrates well with vinyl acetate, butyl acrylate, and styrene for customized copolymer designs.
  • Enhanced Clarity: Yields transparent films ideal for optical and decorative applications.
  • Eco-Conscious Profile: Enables low-VOC compliant formulations supporting sustainable practices.

Integrating Ethyl Acrylate allows formulators to optimize product attributes like elasticity and durability while maintaining cost efficiency and safety.

Handling, Storage, and Packaging

Handling Precautions

Process Ethyl Acrylate in well-ventilated environments with non-sparking equipment and grounded systems. Utilize suitable PPE such as nitrile gloves, safety glasses, and organic vapor respirators. Prevent contact with skin, eyes, or inhalation, and exclude ignition sources.

Storage Guidelines

Maintain in sealed, compatible containers (e.g., stainless steel or aluminum-lined) to inhibit unintended polymerization. Store in a cool, shaded area distant from heat, flames, oxidizers, and polymerization initiators. Ideal temperature: 2-10°C. Shelf life: Up to 12 months with proper inhibition; regularly check MEHQ levels.

Packaging Options

Supplied in:

  • Drums: 180-190 kg net weight
  • IBC Totes: 900-1000 kg net weight
  • Bulk Tankers: Tailored for large-scale deliveries

Packaging adheres to international transport standards (UN 1193, Class 3 Flammable Liquid).

Safety Information

Ethyl Acrylate is designated as a highly flammable liquid (Category 2) with potential for severe skin/eye irritation and respiratory sensitization. Notable risks include:

  • Flammability: Low flash point; vapors form explosive mixtures (LEL 1.4%).
  • Health Effects: Toxic if inhaled or swallowed; may cause allergic dermatitis or pulmonary irritation.
  • Environmental: Harmful to aquatic organisms; readily biodegradable.

First Aid: Flush eyes with water for 15+ minutes; for skin, wash with soap and water. If inhaled, relocate to fresh air and administer oxygen if needed. Refer to the Safety Data Sheet (SDS) for comprehensive protocols. Ensure waste disposal complies with environmental regulations.

Frequently Asked Questions (FAQs)

What is Ethyl Acrylate used for?

Ethyl Acrylate functions as a reactive monomer in synthesizing acrylic polymers for coatings, adhesives, textiles, and latexes, imparting flexibility and clarity.

Is Ethyl Acrylate safe to handle?

It requires cautious handling due to flammability and irritancy; use PPE and ventilation as per SDS to mitigate risks.

What is the shelf life of Ethyl Acrylate?

Up to 12 months under recommended cool, inhibited storage conditions to prevent polymerization.

Can Ethyl Acrylate be used in water-based formulations?

Yes, it’s widely employed in emulsion polymerization for stable, waterborne systems like paints and adhesives.

How does Ethyl Acrylate differ from Butyl Acrylate?

Ethyl Acrylate offers lower viscosity and a lower glass transition temperature for softer polymers, while Butyl Acrylate provides greater hydrophobicity and flexibility in longer-chain applications.

What purity grades are offered for Ethyl Acrylate?

Standard is ≥99.5%, with options for higher purity tailored to precision polymerization needs.

Is Ethyl Acrylate stabilized?

Yes, commonly with 10-100 ppm MEHQ to maintain stability during transport and storage.

Contact our experts for technical sheets, samples, or formulation advice.

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