Plasticizers
REACH
Diisobutyl phthalate
CAS Number
84-69-5
EC Number
201-553-2
Abbreviation
DIBP
What is Diisobutyl phthalate?
Diisobutyl phthalate (CAS 84-69-5), commonly known as DIBP, is a phthalate ester plasticizer used in polymer processing, coatings, and personal care manufacturing. Also marketed as Palatinol IC and Kodaflex DIBP.
Where is Diisobutyl phthalate used?
- PVC and vinyl compounding: imparts flexibility and reduces melt viscosity
- Films, cables, and flexible profiles where processing efficiency matters
- Printing inks and surface coatings: controls film formation and improves adhesion on paper and plastic packaging
- Personal care: film-forming plasticizer in nail lacquers that reduces brittleness and improves wear performance
- Cellulose-based adhesives and sealants: adjusts tack and application time
- It functions as a plasticizer and softening agent, improving flexibility and workability in polymer systems.
Good to know: Buyers should verify purity specifications and regional regulatory compliance, particularly given ongoing restrictions on phthalate plasticizers in certain end-use categories.
Commercial specifications
- Bulk quantities including IBC containers and road tankers, as well as drums for smaller volume orders
Other Names (Synonyms)
phthalic acid, diisobutyl ester|Palatinol IC|Kodaflex DIBP|isobutyl-o-phthalate|Isobutyl phthalate (VAN)|isobutyl phthalate|Hexaplas M/1B|Diisobutylester kyseliny ftalove|DIBP
What are the physical properties of Diisobutyl phthalate?
Melting Point -64 °C
Boiling Point 296.5 °C
Density 1.039 g/cm³ @ Temp: 20 °C
Flash Point >230 °F
Appearance clear liquid
Color Colorless to Light yellow
Odor Practically odorless when pure
Form neat
Water Solubility Insoluble
Vapor Pressure 11.2-1470Pa at 100℃
Refractive Index n 20/D 1.49(lit.)
Log P 4.11-4.45 at 20-30℃
How is Diisobutyl phthalate classified and handled safely? Learn More
Danger
GHS08· Health Hazard GHS09· Environmental Hazard GHS07· Irritant
Hazard Statements
H335 May cause respiratory irritation
H336 May cause drowsiness or dizziness
H360 May damage fertility or the unborn child
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
H412 Harmful to aquatic life with long lasting effects
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
Which trade and regulatory codes apply to Diisobutyl phthalate?
HS Code 29173400
UN Number 3082
ADR Class 9
Packing Group III
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 2