Diisobutyl Ester, specifically known as **Diisobutyl Adipate (DBE-IB)** (CAS No: 141-04-8), is a high-performance, clear, and virtually odorless aliphatic diester. It is produced through the esterification of adipic acid with isobutyl alcohol. Characterized by its low viscosity and excellent thermal stability, DBE-IB serves as a multifunctional chemical intermediate, plasticizer, and specialty solvent. Unlike linear esters, its branched isobutyl structure imparts unique rheological properties and exceptional low-temperature flexibility to polymer matrices. It is widely recognized as a “green” alternative to traditional phthalate plasticizers and high-VOC solvents due to its low toxicity and high biodegradability. Its chemical profile makes it particularly effective in applications requiring high compatibility with synthetic resins, including polyvinyl chloride (PVC), nitrocellulose, and various synthetic rubbers. DBE-IB’s balance of high boiling point and low volatility ensures long-term performance stability in industrial, automotive, and consumer-facing formulations.
* Features low toxicity and a minimal vapor pressure.
* Offers a high boiling point for extended working times.
* Excellent solvency for diverse resin systems.
* Enhances coating appearance with superior leveling properties.
* Maintains an ideal evaporation rate for various applications.
* Highly miscible with most organic solvents for versatile formulations.
* Versatile applications across coatings, inks, adhesives, and cleaning agents.
* A colorless and transparent liquid with a mild ester scent.
* Assay (GC): min 99.5 %
* Water Content: max 0.1 %
* Acid Value (mg KOH/g): max 0.1
* Density @ 20°C: 0.940 – 0.950 g/cm3
* Boiling Point: 188 °C
* Flash Point (PMCC): 79 °C
* Saponification Value: 280-300 mg KOH/g
* Colour (APHA): max 10
* Refractive Index (nD20): 1.4130-1.4150
* Viscosity @ 20°C: 2.0-2.5 mPa.s
* Enhances film formation, leveling, and durability in coatings and paints as an effective coalescing agent.
* Controls viscosity and improves wetting in adhesives and sealants, ensuring smooth, uniform application.
* Acts as a solvent for pigments in printing inks, contributing to vibrant colors and consistent print quality.
* Effectively dissolves greases, oils, and other contaminants in various industrial and household cleaning formulations.
* Serves as a carrier and solvent in textile dyeing and finishing processes, aiding uniform color penetration and improving fabric properties.
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