Product Description
Dibutyl phthalate (DBP) is a clear, colorless oily liquid at room temperature with a mild, characteristic odor. It is free from visible suspended matter and offers excellent appearance quality. High-grade DBP typically has a Pt-Co color value of ≤20 and a purity of ≥99.5%, ensuring consistent quality and reliable performance across a wide range of industrial applications.
Product Parameters
| Melting point | -35 °C (lit.) |
| Boiling point | 340 °C (lit.) |
| Density | 1.043 g/mL at 25 °C (lit.) |
| Vapor density | 9.6 (vs air) |
| Vapor pressure | 1 mm Hg ( 147 °C) |
| Refractive index | n20/D 1.492(lit.) |
| Fp | 340 °F |
| Storage temp | 2-8°C |
| Solubility | Very soluble in alcohol, ether, acetone, benzene |
| Form | Liquid |
| Specific Gravity | 1.049 (20/20℃) |
| Color | APHA: ≤10 |
| PH | 7 (20°C, 10mg/L) |
| Odor | odorless |
| Relative polarity | 0.272 |
| Explosive limit | 0.47%, 236°F |
| Water Solubility | Slightly soluble. 0.0013 g/100 mL |
| FreezingPoint | -35℃ |
| Merck | 14,3035 |
| BRN | 1914064 |
| Henry's Law Constant | 6.3 x 10-5 atm?m3/mol (quoted, Petrasek et al., 1983) |
| Dielectric constant | 6.0（45℃） |
| Exposure limits | NIOSH REL: TWA 5 mg/m3, IDLH 4,000 mg/m3; OSHA PEL: TWA 5 mg/m3; ACGIH TLV: TWA 5 mg/m3. |
| InChIKey | DOIRQSBPFJWKBE-UHFFFAOYSA-N |
| LogP | 4.46-4.57 at 20-30℃ |
| CAS DataBase Reference | 84-74-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Dibutyl phthalate(84-74-2) |
| EPA Substance Registry System | Dibutyl phthalate (84-74-2) |
Application Scenarios
Dibutyl phthalate (DBP) is widely used as an effective plasticizer in the production of plastics, rubber products, coatings, and other flexible materials. It helps improve flexibility, processability, and overall performance.
In addition to its role as a plasticizer, DBP can also be used as a lubricant, emulsifier, high-boiling-point solvent, and stationary phase in gas chromatography.
It is widely used in the manufacture of synthetic leather, printing inks, safety glass, insecticides, fragrance formulations, and other industrial and specialty products.
