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DBP (Dibutyl Phthalate)
Basic PropertiesDBP is a colorless, transparent liquid with a fragrant odor. Its melting point is -35°C, boiling point is 340°C, and flash point is 202°C. It is soluble in various organic solvents, such as alcohols, ethers, and benzene, but has a low solubility in water, only 0.04% (at 25°C).
Quality Inspection Standards
Test Item | Standard Index |
Appearance | Transparent, oil-like liquid with no visible impurities |
Color (Pt-Co scale) | ≦ 20 |
Purity (%) | ≧ 99.5 |
Density (20°C), g/cm³ | 1.044 - 1.048 |
Acidity (as KOH), % | ≦ 0.07 |
Moisture (%) | ≦ 0.10 |
Flash Point (°C) | ≧ 160 |
Main Applications
1. Plasticizer for PVC: DBP increases the flexibility and elongation of PVC, making it easier to process and mold. It is widely used in the production of PVC products such as flooring, hoses, cable sheaths, etc.
2. Used in fiberglass-reinforced plastics: DBP improves the processing performance and heat resistance of fiberglass-reinforced plastics.
3. Used in paints and inks: DBP increases the viscosity and fluidity of paints and inks, enhancing coating performance and color brightness.
4. Used in footwear products: DBP is widely used in footwear manufacturing, particularly in enhancing the flexibility and durability of shoe soles and uppers.
5. Other applications: DBP is also used as an additive in adhesives, printing inks, paper coatings, leather, nail polish, toy balloons, colored pens, and more.