Iso-butyl acetate (CAS No. 110-19-0), also known as 2-methylpropyl acetate, is a clear, colorless liquid ester with a characteristic fruity, banana-like odor. As an isomer of n-butyl acetate, it serves as a versatile medium-boiling solvent widely utilized across various industrial sectors. Chemically, it is produced through the esterification of isobutanol with acetic acid. It occupies a unique niche in solvent chemistry due to its balanced evaporation rate, which is slightly faster than n-butyl acetate but slower than ethyl acetate. This performance characteristic makes it an ideal component in formulations requiring controlled drying times and superior film-forming properties. Iso-butyl acetate exhibits excellent solvency for a broad spectrum of resins, including nitrocellulose, polyurethanes, acrylics, and epoxies. From a safety and regulatory perspective, it is generally considered to have a lower toxicity profile than many aromatic hydrocarbons, is not classified as a Hazardous Air Pollutant (HAP), and is readily biodegradable.
* Serves as an excellent solvent for diverse resins, oils, and waxes.
* Enhances flow and leveling in coating formulations, preventing blush.
* Offers a moderate evaporation rate, balancing drying times.
* Provides a pleasant fruity aroma, valuable for flavors and fragrances.
* Finds widespread use in inks, adhesives, and pharmaceutical applications.
* Boasts high purity with minimal water and acid content.
* Exhibits excellent miscibility with most common organic solvents.
* Purity, % w/w : 99.0 Min
* Acidity, % w/w (as Acetic Acid) : 0.01 Max
* Moisture, % w/w : 0.05 Max
* Color, (APHA) : 10 Max
* Specific Gravity @ 20°C : 0.867 – 0.870
* Distillation Range @ 760 mmHg : 114 – 120°C
* Non-Volatiles, % w/w : 0.005 Max
* Flash Point, °C (Abel Closed Cup) : 18
* Odor : Characteristic, free from suspended matter
* Appearance : Clear, free from suspended matter
* **Coatings:** Acts as an active solvent for various resins, vital in automotive, industrial, wood, and plastic paints and lacquers.
* **Printing Inks:** Utilized as a solvent in both flexographic and gravure printing ink formulations.
* **Adhesives:** Functions as a key solvent component in many adhesive product formulations.
* **Urethane Coatings:** Serves as a diluent in two-component urethane coatings, optimizing viscosity and application characteristics.
* **Chemical Synthesis:** Employed as an intermediate in the production of a range of other chemicals.
* **Fragrances & Flavors:** Included as a specific component in certain fragrance and flavor formulations.
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