Introduction to Methyl Isobutyl Carbinol

Methyl Isobutyl Carbinol (MIBC), with the CAS Number 108-11-2, is a versatile organic compound widely used as a frothing agent in mineral flotation and as a solvent in various industrial applications. Known chemically as 4-methyl-2-pentanol, MIBC is valued for its ability to enhance flotation processes and its solvent properties.

Chemical Properties

Methyl Isobutyl Carbinol is a clear, colorless liquid with a mild, pleasant odor. Its key chemical properties include:

  • CAS Number: 108-11-2

  • Molecular Formula: C6H14O

  • Molecular Weight: 102.17 g/mol

  • Boiling Point: Approximately 131–133°C

  • Density: 0.805 g/cm³ at 20°C

  • Solubility: Moderately soluble in water (15 g/L at 20°C), highly soluble in organic solvents like ethanol, ether, and acetone

  • Flash Point: 41°C (closed cup)

  • Appearance: Clear, colorless liquid

    Application

    1. Frothing Agent in Mineral Flotation

    MIBC is widely used as a frother in the froth flotation process for separating valuable minerals, such as copper, lead, zinc, and gold, from ore. Its ability to produce stable, fine bubbles enhances the efficiency of mineral recovery in mining operations.

    2. Solvent in Coatings and Inks

    MIBC serves as a solvent in the formulation of paints, coatings, and printing inks. Its moderate evaporation rate and solvency power make it ideal for achieving uniform finishes and improving coating performance.

    3. Chemical Intermediate

    In chemical synthesis, MIBC is used as an intermediate for producing lubricants, plasticizers, and other specialty chemicals. Its hydroxyl group enables versatile reactions for creating derivatives.

    4. Other Industrial Uses

    MIBC is employed as a solvent in the production of adhesives, hydraulic fluids, and cleaners. It is also used in the extraction of essential oils and as a component in brake fluids.

    Safety and Handling

    Proper handling of Methyl Isobutyl Carbinol (CAS No. 108-11-2) is essential due to its flammability and potential health hazards:

    • Hazards: Flammable liquid (H226) that may cause skin and eye irritation (H315, H319) and respiratory irritation (H335). Harmful if inhaled (H332).

    • Protective Measures: Use personal protective equipment (PPE), including chemical-resistant gloves, safety goggles, and respiratory protection. Handle in a well-ventilated area, away from heat, sparks, and open flames.

    • Storage: Store in a cool, dry, well-ventilated area in tightly sealed containers, away from oxidizing agents and ignition sources. Use explosion-proof equipment.

    • Disposal: Dispose of according to local regulations for hazardous chemicals to prevent environmental contamination.

    Always consult the Material Safety Data Sheet (MSDS) for detailed safety information before handling.