Diisobutyl Ketone(DIBK) CAS 108-83-8
Diisobutyl Ketone, commonly known as DIBK or by its IUPAC name 2,6-Dimethyl-4-heptanone, is a slow-evaporating, high-boiling solvent characterized by its distinct minty aroma and excellent solvency power. As a specialized ketone, it serves as a critical component in the formulation of high-performance coatings, synthetic resins, and organic synthesis.
As a leading Diisobutyl Ketone supplier, we offer high-purity (≥99%) DIBK that meets the rigorous demands of the global chemical industry. Its unique branched structure provides a balanced evaporation rate and low density, making it a cost-effective alternative to more expensive high-boiling solvents.
- Exceptional Solvent Power: DIBK is highly effective at dissolving nitrocellulose, acrylic resins, vinyl resins, and epoxy systems.
- Optimal Evaporation Profile: Its slow evaporation rate makes it an ideal “tail solvent” to prevent surface defects like blushing, pinholing, or orange peeling in coatings.
- Low Water Solubility: Insoluble in water but fully miscible with most organic solvents, alcohols, and ethers, facilitating complex chemical formulations.
- Chemical Stability: It remains stable and non-reactive under normal storage conditions, providing a long shelf life for your end products.
- Flavor and Fragrance Intermediate: Beyond industrial use, DIBK is a key intermediate in synthesizing various fruit-flavored esters used in the food industry.
Diisobutyl Ketone Description
Name: Diisobutyl Ketone (DIBK)
Synonyms: Isobutyl ketone / 2,6-Dimethyl-4-heptanone
Molecular Formula: C9H18O
Structural Formula: (𝐶𝐻3𝐶𝐻(𝐶𝐻3)𝐶𝐻2)2𝐶𝑂
Molecular Weight: 142.24
CAS NO.: 108-83-8
HS Code: 29141990
UN Number: 1159
EINECS: 203-620-1
Density: 0.8±0.1 g/cm3
Boiling point: 170.3±8.0 °C at 760 mmHg
Melting point: -46 °C
Flashing point: 45.0±0.0 °C
Purity: 99%
Appearance: Colorless oily liquid with a minty flavor
Water Solubility: Insoluble in water, can be miscible in ethanol, ether and other organic solvents.
Properties: Colorless oily liquid. Green, ethereal, fermented, fruity and sweet jackfruit or mint aroma. Insoluble in water, soluble in ethanol and oils. Natural products exist in Kangniangke wine, wine, etc.
Package: Available in 200L (165kg) steel drums, IBC tanks, or bulk ISO tankers to meet diverse procurement scales.
Storage: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. Store separately from oxidants, reducing agents, and alkalis, and do not store them together. Use explosion-proof lighting and ventilation facilities. Do not use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with leakage emergency treatment equipment and appropriate containment materials.
Safety Protection: It is irritating to the skin and eyes. Please avoid contact with the skin and eyes when using it. During use, good ventilation should be maintained to avoid poisoning caused by excessive vapor concentration.
About Us: With over many years as a certified Diisobutyl Ketone manufacturer, we combine innovation with stringent production standards to deliver high-performance product.
Isobutyl ketone Technical
If you need Diisobutyl Ketone MSDS & COA, please contact us
| Item | Index |
| Appearance | Colorless oily liquid with a minty flavor |
| Color(AHPI) | Max20 |
| Specific gravity 20ºC/g/cm3 | 0.8040-0.8120 |
| DIBK,plus DIBK Isomer, wt% | Min 97 |
| Water content(wt%) | Max0.1 |
As a certified Diisobutyl Ketone factory, we adhere to strict quality protocols, with every batch undergoing rigorous testing to ensure consistent efficacy and safety.
DIBK Applications
- High-Performance Coatings and Lacquers: DIBK is widely used in automotive OEM coatings and refinishes. Its high boiling point helps control the drying time of the paint film, ensuring a smooth, high-gloss finish. It is particularly effective in spray-applied nitrocellulose lacquers.
- Synthetic Resin Production: It acts as a primary carrier or diluent for various resins, including alkyds, epoxies, and polyesters. Its compatibility with these polymers makes it essential for high-solids coating formulations.
- Flavor and Fragrance Industry: Due to its natural occurrence in certain fruits (like jackfruit and bananas), DIBK is synthesized for use as a food additive. It provides a sweet, fruity, and fermented aroma for rum, banana, and tropical fruit flavorings.
- Leather and Textile Treatments: DIBK is utilized in leather tanning and textile finishing agents to improve the penetration of dyes and protective coatings.
- Chemical Intermediate: It serves as a precursor for the synthesis of various specialty chemicals, including pesticides, pharmaceuticals, and rubber chemicals.
Frequently Asked Questions (FAQ)
Q: Is Diisobutyl Ketone a direct replacement for Methyl Isobutyl Ketone (MIBK)?
A: While they share similar solvency, DIBK has a significantly higher boiling point and slower evaporation rate. It is often used in combination with MIBK to fine-tune the drying characteristics of a coating.
Q: Does DIBK have a strong odor?
A: It has a mild, minty, and Jackfruit-like aroma. It is generally considered more pleasant than the pungent odors of shorter-chain ketones like Acetone or Methyl Ethyl Ketone (MEK).
Q: What is the shelf life of your DIBK?
A: When stored in original sealed drums in a climate-controlled warehouse, DIBK maintains its quality for at least 24 months.
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