Dibutyl Phthalate
DBP, Di-n-butyl Phthalate, Phthalic Acid Dibutyl Ester.
- CAS
- 84-74-2
- EC
- 201-557-4
- Sectors
- Plastics & Polymers, Printing & Packaging, Coatings, Adhesives, Sealants & Elastomers
Dibutyl Phthalate (CAS 84-74-2) is a primary phthalate ester plasticizer supplied in Technical Grade at 99.5% purity, a clear, oily liquid with strong compatibility for nitrocellulose and polyvinyl chloride resins, and it is used to bring low-temperature flexibility to flexible PVC, industrial coatings, adhesives and printing inks. It is provided in Technical Grade with a 99.5% Purity level, offering superior solvent power and flexibility.
As a clear, oily liquid, it provides low-temperature flexibility and high stability in elastomer formulations. Its Low Viscosity makes it an ideal choice for manufacturing coatings, adhesives, and printing inks where rapid fusion and high gloss are required.
The chemical is widely utilized for its ability to enhance the workability of rubber and cellulose-based products. It remains a standard benchmark for Solvent-Type Plasticizers in industrial applications requiring high-precision resin modification.
Typical Properties
| Molecular formula | C16H22O4 |
|---|---|
| Molecular weight | 278.34 g/mol |
| Appearance | clear liquid |
| Form | Liquid |
| Color | APHA: ≤10 |
| Odor | odorless |
| Melting point | -35 °C |
| Boiling point | 340 °C |
| Density | 1.0465 g/cm³ @ Temp: 20 °C |
| Water solubility | Slightly soluble. 0.0013 g/100 mL |
| Flash point | 340 °F |
| pH | 7 (20°C, 10mg/L) |
| GHS signal word | Danger · Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 29173100 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Dibutyl Phthalate
Applications
- Flexible PVC Production: Enhances elasticity and durability in plastic films, automotive parts, and household consumer goods.
- Industrial Coatings: Acts as a plasticizer in nitrocellulose lacquers and paper coatings to prevent cracking and improve adhesion.
- Adhesives & Sealants: Improves the flexibility and bonding strength of polyvinyl acetate (PVA) glues and various industrial sealants.
Safety & Risks
Classified as a Reproductive Toxin (Category 1B) and Environmentally Hazardous to aquatic life. Mandatory PPE includes Nitrile Gloves, Chemical Splat Goggles, and Type ABEK Respirators.
Packaging
Available in 200 kg Steel Drums, 1000 kg IBC Tanks, or bulk ISO Tankers.