Diisobutyl ketone

CAS: 108-83-8

Overview

Diisobutyl ketone (CAS 108-83-8 ), also known as DIBK or Valerone, is a slow-evaporating ketone solvent used across coatings, adhesives, and flavor applications.

Its controlled evaporation rate makes it a preferred carrier in formulations where extended open time or gradual release is commercially valuable for industrial and specialty chemical processes.

In coatings and lacquers, DIBK functions as a high-boiling solvent that improves flow and leveling in nitrocellulose and acrylic systems, reducing surface defects in the final film.

Adhesive formulators use it to control viscosity and working time in contact cement and pressure-sensitive adhesive systems. In the flavor industry, it is approved under FEMA 3537 .

As a flavoring agent, it contributes fruity, sweet notes to food and beverage products. Personal care formulators incorporate it as a solvent carrier in nail care products and aerosol formulations.

It is highly valued where compatibility with resins and slow evaporation are required. Diisobutyl ketone is supplied as a clear liquid in standard industrial drum and IBC quantities.

Technical grade is the most common supply form for solvent applications, while flavor-grade material is available for food and cosmetic use. Buyers should confirm purity specifications.

Grade documentation is essential when sourcing for regulated end-use categories. Ensure all materials meet necessary safety and regulatory requirements for your specific application needs.

Physical Properties

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℃

Safety & Handling

Warning GHS02 GHS07 GHS08 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 H336 May cause drowsiness or dizziness H370 Causes damage to organs H402 Harmful to aquatic life H412 Harmful to aquatic life with long lasting effects 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. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P331 Do NOT induce vomiting. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P403+P235 Store in a well-ventilated place. Keep cool. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code	29141990
UN Number	1157
ADR Class	3
Packing Group	III
Storage Class	3 - Flammable liquids
WGK (Germany)	1

Other Names

Industries

Food & Nutrition Personal Care & Cosmetics