Chemical Structure: MIBK, also known as 4-methyl-2-pentanone, has the chemical formula C₆H₁₂O. It is classified as a ketone, which is a type of organic compound characterized by a carbonyl group (C=O) bonded to two alkyl groups.
Physical Properties: MIBK is a colorless liquid with a distinctive, sweet, acetone-like odor. It has a molecular weight of 100.16 grams per mole. MIBK has a boiling point of approximately 116.5 degrees Celsius (241.7 degrees Fahrenheit) and a melting point of around -84 degrees Celsius (-119 degrees Fahrenheit). It is soluble in organic solvents such as ethanol, ether, and benzene but has limited solubility in water.
Synthesis: MIBK is typically produced through the acetone condensation process, which involves the reaction of acetone with hydrogen in the presence of a catalyst such as copper chromite. The reaction yields MIBK along with small amounts of other ketones such as diisobutyl ketone.
Industrial Importance: MIBK is valued for its strong solvency power, moderate evaporation rate, and low water solubility, making it useful in various industrial applications. It serves primarily as a solvent in the formulation of paints, coatings, adhesives, and pharmaceuticals. Additionally, MIBK finds use as a reactant in chemical synthesis and as an extraction agent in certain processes.
Safety Considerations: While MIBK is widely used in industry, it is important to handle it with care due to its flammable nature. Inhalation or skin exposure to MIBK vapor or liquid should be avoided, and appropriate safety measures, such as ventilation and personal protective equipment, should be implemented when working with this chemical.
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