Butyl Acrylate (CAS 141-32-2) – Premium Acrylic Monomer for Versatile Polymer Applications

Discover Butyl Acrylate, a high-purity acrylic ester monomer essential for producing durable coatings, adhesives, and specialty polymers. With its excellent reactivity and low volatility, Butyl Acrylate (BA) is a cornerstone ingredient in industries ranging from paints to textiles. Sourced from reliable chemical synthesis processes, our Butyl Acrylate meets stringent quality standards for consistent performance in emulsion polymerization and copolymer formulations.

Product Overview

Butyl Acrylate is a clear, colorless liquid with a characteristic fruity odor, widely recognized for its role in creating flexible and weather-resistant materials. As a key building block in acrylate chemistry, it enables the development of products that enhance adhesion, flexibility, and chemical resistance in end-use applications.

Key Specifications

Property Value/Description
CAS Number 141-32-2
Molecular Formula C₇H₁₂O₂
Molecular Weight 128.17 g/mol
Appearance Clear, colorless liquid
Purity ≥99.5% (typical)
Density 0.895-0.905 g/mL at 20°C
Boiling Point 145-148°C
Flash Point 40°C (closed cup)
Refractive Index 1.418-1.420 at 20°C
Solubility Slightly soluble in water (1.3 g/100 mL at 20°C); miscible with most organic solvents
Acid Value ≤0.01% (as acetic acid)
Inhibitor 10-15 ppm MEHQ (hydroquinone monomethyl ether)

These specifications ensure optimal polymerization efficiency and minimal impurities for superior product quality.

Applications and Uses

Butyl Acrylate excels in a variety of industrial formulations due to its balanced hydrophobicity and reactivity. Common applications include:

  • Paints and Coatings: Provides flexibility and adhesion in water-based latex paints, architectural coatings, and industrial finishes for enhanced durability and weather resistance.
  • Adhesives and Sealants: Improves tack and elongation in pressure-sensitive adhesives, caulks, and sealants used in construction and automotive sectors.
  • Textiles and Nonwovens: Enhances softness and printability in fabric coatings, leather finishes, and nonwoven binders.
  • Paper and Packaging: Strengthens surface treatments for improved print quality, water resistance, and foldability in paper products.
  • Specialty Polymers: Serves as a comonomer in acrylic emulsions for personal care products, detergents, and superabsorbent polymers.

Its versatility makes Butyl Acrylate indispensable for manufacturers seeking high-performance, eco-friendly solutions in polymer synthesis.

Features and Benefits

  • High Reactivity: Rapid polymerization rates for efficient production cycles.
  • Low Odor and Volatility: Reduces processing emissions and improves worker safety.
  • Excellent Compatibility: Blends seamlessly with styrene, methyl methacrylate, and other monomers for tailored copolymer properties.
  • Sustainability Focus: Supports low-VOC formulations aligned with green chemistry principles.
  • Consistent Quality: Batch-to-batch uniformity ensures reliable results in large-scale operations.

By incorporating Butyl Acrylate, producers can achieve cost-effective enhancements in product performance without compromising on safety or environmental standards.

Handling, Storage, and Packaging

Handling Precautions

Handle Butyl Acrylate in well-ventilated areas using spark-proof tools and explosion-proof equipment. Wear appropriate personal protective equipment (PPE), including chemical-resistant gloves, safety goggles, and respirators. Avoid skin contact, inhalation, and ignition sources.

Storage Guidelines

Store in tightly sealed containers made of compatible materials like stainless steel or coated carbon steel to prevent polymerization. Keep in a cool, dry place away from heat, sparks, open flames, and strong oxidizers. Recommended storage temperature: 5-25°C. Use within one year of manufacture to maintain stability. Inhibit with MEHQ and monitor inhibitor levels regularly.

Packaging Options

Available in:

  • Drums: 180-190 kg net weight
  • IBC Totes: 900-1000 kg net weight
  • Bulk Tankers: Custom volumes for high-volume needs

All packaging complies with UN regulations for safe transport (UN 1992, Class 3 Flammable Liquid).

Safety Information

Butyl Acrylate is classified as a flammable liquid (Category 3) and may cause skin/eye irritation or allergic reactions. Key hazards include:

  • Flammability: Highly flammable vapors; autoignition temperature ~250°C.
  • Health Effects: May irritate respiratory tract if inhaled; potential for skin sensitization.
  • Environmental: Low aquatic toxicity but biodegradable under aerobic conditions.

First Aid: For eye contact, rinse with water for 15 minutes; seek medical attention. In case of inhalation, move to fresh air. Always consult the Safety Data Sheet (SDS) for detailed emergency procedures. Dispose of waste according to local regulations to minimize environmental impact.

Frequently Asked Questions (FAQs)

What is Butyl Acrylate used for?

Butyl Acrylate is primarily used as a monomer in the production of acrylic polymers for paints, adhesives, textiles, and coatings. It imparts flexibility and adhesion to these materials.

Is Butyl Acrylate safe to handle?

When handled with proper PPE and in ventilated areas, yes. It is flammable and a potential skin irritant, so follow SDS guidelines to avoid exposure.

What is the shelf life of Butyl Acrylate?

Typically 12 months when stored properly under cool, dark conditions with adequate inhibition to prevent polymerization.

Can Butyl Acrylate be used in water-based systems?

Absolutely—it’s a key component in emulsion polymerization for waterborne latexes, offering excellent stability and performance.

How does Butyl Acrylate compare to other acrylates like Methyl Acrylate?

Butyl Acrylate provides better flexibility and hydrophobicity due to its longer alkyl chain, making it ideal for outdoor and flexible applications, while Methyl Acrylate is more rigid and volatile.

What purity levels are available for Butyl Acrylate?

Our standard grade offers ≥99.5% purity, with customized options for ultra-high purity needs in sensitive applications.

Does Butyl Acrylate contain any stabilizers?

Yes, it is typically stabilized with 10-15 ppm MEHQ to inhibit premature polymerization during storage and transport.

For more detailed technical data or samples, reach out to our team.

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