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Send EmailDibutyl Phthalate, Phthalic Acid Dibutyl Ester, DBP, 84-74-2
Dibutyl Phthalate is an organic compound with the chemical formula C16H22O4. It is an artificial chemical added to plastics and other materials to make them more flexible (a plasticizer). It is used in elastomers, lacquers, explosives, printing inks, resin solvents, perfume oil solvents, paper coatings, adhesives, and nail polish.
Physical Properties:
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Color: Colorless or pale yellow oily liquid
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Density: 1.05 g/cm³ (at 20°C)
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Melting Point: -35°C
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Boiling Point: 340°C
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Solubility (in water): 13 mg/L (at 25°C)
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Vapor Pressure: 0.00007 mmHg (at 20°C)
Chemical Properties:
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Molecular Formula: C16H22O4
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Molecular Weight: 278.34 g/mol
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CAS Number: 84-74-2
Applications:
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Coating and Sealant Products
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Adhesives and Glues
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Inks and Printing
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Textile Coatings
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Industrial Rubber Products
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Paints and Varnishes
Dibutyl Phthalate is widely used as a plasticizer due to its low toxicity and broad liquid range.
Dibutyl Phthalate (DBP) is also known by several other names:
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Di-n-butyl phthalate
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1,2-Benzenedicarboxylic acid, dibutyl ester
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Phthalic acid, dibutyl ester
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DBP (common abbreviation)
These names are used interchangeably in various industries and applications.
Comparison of Five Phthalates
| Property | DMP (Dimethyl) | DEP (Diethyl) | DBP (Dibutyl) | DOP/DEHP (Dioctyl) | DIDP (Diisodecyl) |
|---|---|---|---|---|---|
| Formula | C10H10O4 | C12H14O4 | C16H22O4 | C24H38O4 | C28H46O4 |
| Molecular Weight | ~194 g/mol | ~222 g/mol | ~278 g/mol | ~390 g/mol | ~446 g/mol |
| Boiling Point | ~282 °C | ~298 °C | ~340 °C | ~385 °C | >400 °C |
| Volatility | High | Medium | Low | Very low | Very low |
| Solubility | Slightly soluble in water | Low solubility in water | Insoluble in water | Insoluble in water | Insoluble in water |
| Main Applications | Insect repellents, specialty polymers | Cosmetics, perfumes, cellulose acetate plastics | PVC, adhesives, rubber | PVC, vinyl flooring, cable insulation | Automotive parts, high-temp cables, durable PVC |
| Toxicological Profile | Relatively low | Low | Endocrine disruptor risk | Environmental concerns, restricted in EU | Safer profile, low migration |
| Usage Share (out of 100 units) | 🔵 8% | 🔵 12% | 🔵 15% | 🔵 40% | 🔵 25% |
