Benzyl Glycidyl Ether CAS 89616-40-0

Benzyl Glycidyl Ether – Low-Viscosity Reactive Diluent for Epoxy Resins

Basic Information

• Chemical Name: Benzyl glycidyl ether

• CAS Number: 89616-40-0

• Structural Formula: C₆H₅CH₂OCH₂(CHCH₂)O (epoxide group)

• Appearance: Colorless or slightly yellowish transparent liquid with mild odor

• Specific Gravity: 0.98

• Boiling Point: High (typical for glycidyl ethers)

• Viscosity: Low, effective for reducing epoxy resin viscosity

• Stability: Chemically stable under normal conditions; low volatility.

Overview
Benzyl glycidyl ether is synthesized by the dehydration reaction of benzyl alcohol with epichlorohydrin. It is a monofunctional glycidyl ether containing a benzyl (aromatic) group, which imparts rigidity to the cured epoxy network, resulting in higher heat distortion temperature compared to butyl glycidyl ether. It is characterized by low toxicity, almost no unpleasant odor, and good environmental and occupational safety.

Key Performance Features

• Excellent diluting effect – significantly reduces epoxy resin viscosity, improving processability.

• Low toxicity and low odor – safer for operators and the environment.

• Contains rigid aromatic segments – increases the glass transition temperature (Tg) and heat resistance of cured products.

• Good thermal stability – suitable for applications requiring elevated temperature resistance.

• Compatible with various epoxy resins and curing agents.

• Maximum addition can reach up to 20% of the resin weight without compromising mechanical properties.

Applications

• Electronics and electrical engineering: Used in encapsulation, potting, and impregnation of electronic components, providing low viscosity and good electrical insulation.

• Coatings: As a reactive diluent in epoxy coatings to improve flow and leveling.

• Adhesives: Reduces viscosity for easier application and better wetting of substrates.

• Construction: Used in flooring and repair compounds where low viscosity is required.

• General industrial: Suitable for casting, laminating, and tooling applications.

Recommended Usage
Typically 5–20% by weight of the epoxy resin, depending on the desired viscosity reduction and final properties. Higher amounts may affect mechanical strength, so optimization is recommended.

Handling and Storage

• Store in a cool, dark, dry, and well‑ventilated place, away from ignition sources, heat, and direct sunlight.

• Keep containers tightly sealed after use to prevent moisture absorption, which may affect performance.

• Shelf life: 1 year under recommended storage conditions.

• This product may cause skin and eye irritation. In case of contact, wash with soap and water for skin, or rinse eyes with plenty of water and seek medical attention if irritation persists.

• Transported as a non‑hazardous chemical under normal conditions; comply with general chemical handling regulations.

Packaging
Available in 25 kg or 200 kg plastic or iron drums. Custom packaging upon request.

Quality Assurance
Each batch is tested for purity (by GC), epoxy equivalent weight, viscosity, color, and water content to ensure consistent performance.