Methyl isobutyl ketone (MIBK)
Characteristics: This product is used in the production of spray paint, nitrocellulose, some essential fibers, camphor, oils, pharmaceuticals, intermediate dyes, solvents for natural and synthetic rubbers, and antioxidant additives
MIBK or methyl isobutyl ketone is a name commonly used to describe 4-methylpentan-2-one, an organic chemical compound with the formula (CH3)2CHCH2C(O)CH3. MIBK is a ketone that appears as a colorless liquid at room temperature. It is used in a variety of industries, primarily as a solvent.
Methyl isobutyl ketone （CAS Number · 108-10-1） appears as a clear colorless liquid with a pleasant odor. Flash point 73°F. Less dense than water. Vapors heavier than air. Methyl isobutyl ketone is used as a solvent for gums, various synthetic resins, paints, varnishes, lacquers, and nitrocellulose，coatings and inks, rubber chemicals, pharmaceutical/agrochemical, cosmetics, additives, cellulosic, vinyl copolymers, acrylics, alkyds, polyesters, and epoxies. It is very useful in developing high solids coatings used for automotive applications because of its possessing combined characteristics of the high solvent activity and low density.
In the automotive sector, methyl isobutyl ketone (MIBK) is used for manufacturing automotive chemicals, such as protective paints and coatings, that are further used in exterior parts of the vehicle, to add a pleasant appeal to vehicles. They are also used in metallic parts and plastic vehicle components of both interior and exterior types. Automotive coatings are used as protection against sunlight, material corrosiveness, and environmental effects, such as acid rain, hot-cold shocks, stone chips, UV radiation, car washing, and blowing sand, among others.
The methyl isobutyl ketone (MIBK) market is expected to register a CAGR of more than 6%. Some of the prominent trends that the market is increasing demand for MIBK in the synthesis of anti-ozonant additive for rubber. Increasing demand for solvents for rubber processing chemicals in Asia and growing demand for surface coatings are likely to hinder the market’s growth. Increasing awareness about the toxic effects of MIBK on the environment is expected to act as an opportunity for the market. All the aforementioned factors, in turn, are expected to drive the Methyl Isobutyl Ketone (MIBK), over the forecast period.
Methyl isobutyl ketone health effects include eye and respiratory tract irritation, prolonged or repeated contact may dry the skin and cause irritation. May cause central nervous system depression. This material has been reported to be susceptible to autoxidation and therefore should be classified as peroxidizable. May form explosive peroxides. May cause liver damage.
Uses of MIBK
Methyl isobutyl ketone is often used as a precursor in the production of 6PPD or N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylene diamine. 6PPD is a common antiozonant chemical utilized in tires.
In addition to its use as a precursor, MIBK is commonly used as a solvent. The chemical’s low solubility in water makes it effective in liquid-liquid extractions. For example, MIBK can be used to extract precious metals such as gold dissolved in cyanide. It’s also used to manufacture denatured alcohol and CS spray. The chemical can also be utilized as a solvent for lacquers, resins, polymers, and nitrocellulose.
|Appearance||colorless transparent liquid|
|MIBK content/% ≥||99.5|
|MIBK content%/ ≤||0,01|
|Mass fraction of acids (acetic acid)%≤||0.02|
|Chromaticity / Hazen (platinum-cobalt color scale) ≤||10|
|Mass fraction of non-volatile residue/% ≤||0.005|