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Ethylene Glycol Monobutyl Ether

Product Information

CAS Number

111-76-2

Safety Data Sheets Download

Other Names

2-Butoxyethanol
Ethylene glycol, mono-n-butyl ester
Ethanol, 2-butoxy-
Butyl glycol

Ethylene Glycol Monobutyl Ether

About Ethylene Glycol Monobutyl Ether

Ethylene Glycol Monobutyl Ether, commonly known as butyl glycol, butyl cellosolve, or EGBE, is an organic compound with the chemical formula C₆H₁₄O₂. It is a colorless liquid with a mild, ether-like odor and is miscible with water and most organic solvents. EGBE is produced through the reaction of ethylene oxide with n-butanol under controlled conditions, typically in the presence of a catalyst. This glycol ether combines the properties of both alcohols and ethers, making it an exceptionally versatile solvent.

The dual solubility characteristics of EGBE—its ability to dissolve both water-soluble and oil-soluble substances—make it invaluable across numerous industrial applications. Its moderate evaporation rate, coupling ability, and surface tension reduction properties have established it as a key ingredient in coatings, cleaning products, and chemical formulations. Major sectors utilizing EGBE include surface coatings, industrial and household cleaning, printing, textile processing, chemical manufacturing, and specialty applications where its unique solvency and coupling properties are essential.

Ethylene Glycol Monobutyl Ether Uses

Paints and Coatings

EGBE is extensively used as a coalescing agent and solvent in water-based paints, lacquers, and coatings formulations. It improves film formation by lowering the minimum film-forming temperature of latex paints, allowing for better leveling, flow, and adhesion. EGBE helps achieve uniform coating application and enhances the durability and appearance of finished surfaces. It is particularly valuable in architectural coatings, industrial finishes, and automotive paints where it contributes to proper drying characteristics, gloss retention, and overall coating performance. Its ability to act as a coupling agent between water and resin phases makes it essential in modern waterborne coating systems.

Industrial and Household Cleaners

EGBE is a key ingredient in a wide range of cleaning products including all-purpose cleaners, glass cleaners, degreasers, and surface cleaners for both household and industrial applications. Its excellent solvency for oils, greases, and soils, combined with its water miscibility, makes it highly effective at removing tough stains and residues from various surfaces. EGBE provides streak-free cleaning on glass and hard surfaces while also serving as a coupling agent to stabilize cleaner formulations. In industrial cleaning, it is used in metal cleaners, equipment degreasers, and maintenance products where powerful cleaning action is required.

Printing Inks

In the printing industry, EGBE serves as a solvent and viscosity modifier in various ink formulations, particularly for screen printing, flexographic printing, and inkjet applications. It helps control ink flow properties, drying characteristics, and print quality. EGBE improves color development, reduces surface tension for better substrate wetting, and prevents ink from drying too quickly on printing equipment. Its use in ink formulations helps achieve consistent print results, proper adhesion to various substrates, and suitable drying times for different printing processes and conditions.

Textile Processing

EGBE is utilized in textile dyeing and finishing operations as a leveling agent, dispersant, and solvent. It helps achieve uniform dye penetration and color distribution across fabric surfaces, preventing uneven dyeing and streaking. In textile printing, EGBE serves as a solvent for dyes and carriers, improving print definition and color vibrancy. It is also employed in fabric finishing processes to enhance the application of softeners, water repellents, and other finishing agents. The compound’s ability to reduce surface tension and improve wetting makes it valuable in achieving consistent, high-quality textile processing results.

Chemical Manufacturing and Specialty Applications

EGBE serves as an important intermediate and solvent in chemical synthesis processes, including the production of plasticizers, resins, and various specialty chemicals. It is used as an extraction solvent in pharmaceutical and fine chemical manufacturing, where selective solvency is required. In the electronics industry, EGBE is employed in photoresist strippers and cleaning solutions for semiconductor manufacturing. It also finds applications in metalworking fluids as a coupling agent and corrosion inhibitor, in agricultural formulations as a solvent and dispersant for pesticides and herbicides, and in cosmetic formulations where its solvency and low odor are beneficial. The oil and gas industry utilizes EGBE in drilling fluids and well treatment applications.

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