Solvents
REACH
Diisobutyl ketone
CAS Number
108-83-8
EC Number
203-620-1
FEMA Number
FEMA 3537
Abbreviation
DIBK
What is Diisobutyl ketone?
Diisobutyl ketone (CAS 108-83-8), also known as DIBK or Valerone, is a slow-evaporating ketone solvent. FEMA 3537.
Where is Diisobutyl ketone used?
- Coatings and lacquers: high-boiling solvent that improves flow and leveling in nitrocellulose and acrylic systems, reducing surface defects
- Adhesives: viscosity and working-time control in contact cement and pressure-sensitive systems
- Flavor: fruity, sweet notes in food and beverage products
- Personal care: solvent carrier in nail care and aerosol formulations
- Its controlled evaporation rate makes it a carrier where extended open time or gradual release is needed.
Good to know: Technical grade is the most common supply form for solvent applications; flavor-grade material is available for food and cosmetic use. Buyers should confirm purity specifications and grade documentation for regulated end-use categories.
Commercial specifications
- Standard industrial drum and IBC quantities
- Purity specifications to be confirmed by buyers
- Grade documentation for regulated end-use categories
Other Names (Synonyms)
Valerone|sym-Diisopropyl acetone|Isobutyl propyl ketone|Isobutyl N-propyl ketone|DIBK|4-Heptanone, 2-methyl-|2-Methylheptan-4-one|2-methyl-4-heptanone
What are the physical properties of Diisobutyl ketone?
Melting Point -41.5 °C
Boiling Point 168 °C
Density 0.8062 g/cm³ @ Temp: 20 °C
Flash Point 120 °F
Appearance colourless liquid
Color Clear colorless to slightly yellow
Odor Mild; characteristic ketonic.
Form Liquid
Water Solubility 0.05 g/100 mL
Vapor Pressure 1.7 mm Hg ( 20 °C)
Refractive Index n 20/D 1.412(lit.)
Log P 3.71 at 20℃
How is Diisobutyl ketone classified and handled safely? Learn More
Warning
GHS02· Flammable GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H226 Flammable liquid and vapor
H305 May be harmful if swallowed and enters airways
H320 Causes eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
Which trade and regulatory codes apply to Diisobutyl ketone?
HS Code 29141990
UN Number 1157
ADR Class 3
Packing Group III
Storage Class 3 - Flammable liquids
WGK (Germany) 1