Diisobutyl Phthalate (DIBP) CAS 84-69-5 Supplier & Factory Wholesale
Diisobutyl Phthalate (DIBP), also written as di iso butyl phthalate is a high-efficiency primary plasticizer widely used in flexible PVC formulations, industrial coatings, adhesives, and rubber compounds. Functioning as a cost-effective alternative to DBP (Dibutyl Phthalate), our industrial-grade DIBP chemical provides outstanding gelling capacity and low-temperature flexibility. As a premier di iso butyl phthalate supplier, we offer bulk packaging in 200L steel drums and IBC totes.
- High Plasticizing Efficiency: Effectively softens polyvinyl chloride (PVC) and alternative polymer matrices, significantly enhancing product flexibility, elongation, and tensile performance.
- Excellent Compatibility & Solubility: Demonstrates superior miscibility with various synthetic resins, rubbers, and cellulose-based polymers, ensuring uniform blending without phase separation.
- Outstanding Extraction Resistance: Features excellent chemical stability, reducing migration and extraction under varying environmental conditions to effectively extend the lifespan of end products.
Diisobutyl Phthalate Description
Name: Diisobutyl Phthalate (DIBP)
Synonyms: Diisobutyl ester of phthalic acid / Bis(2-methylpropyl) benzene-1,2-dicarboxylate
Molecular Formula: C16H22O4
Molecular Weight: 278.34
CAS NO.: 84-69-5
Density: 1.0±0.1 g/cm3
Boiling point: 295.3±8.0 °C at 760 mmHg
Melting point: -64 °C
Flashing point: 153.9±7.9 °C
Appearance: Clear colorless, and odorless viscous liquid
Water Solubility: Insoluble in water
Properties: Di iso butyl phthalate is a clear, colorless transparent liquid featuring a mild, characteristic ester odor. It exhibits a low water solubility of 0.05g/L at 25°C. It is completely compatible with polyvinyl chloride (PVC), cellulose resins, polystyrene, polyvinyl acetate, and diverse synthetic rubbers, making it an incredibly versatile additive in polymer processing.
Package: 25L/drum, 200L/drum, 1000L/drum
Storage: Store in a cool, ventilated warehouse, away from light, fire, sun, rain and water intrusion.
Safety Protection: Take adequate ventilation measures to avoid inhalation or skin contact. When using, wear appropriate personal protective equipment such as gloves and goggles. If swallowed or accidentally contacted with skin, please seek medical treatment immediately.
DIBP (Diisobutyl Phthalate) Technical
| Item | Index |
| Appearance | Clear colorless, viscous liquid |
| Ester ,%≥ | 99.0 |
| Acidity as benzene dicarbonic acid%≤ | 0.01 |
| Moisture,% | 0.06 |
| Chroma , Pt-Co # ≤ | 30 |
| Loss on heat ,%≤ | 0.3 |
Di iso butyl phthalate Applications
- PVC and Resin Processing: Di iso butyl phthalate is one of the most widely utilized primary plasticizers in the plastics industry. It functions seamlessly within cellulose resins, vinyl resins, butadiene rubber, and chlorinated rubber. Its plasticizing performance closely mirrors that of DBP, but offers enhanced economic benefits, making it the preferred choice for maximizing cost-to-performance ratios.
- Pigment Dispersion & Finishes: Thanks to its excellent wetting properties and pigment compatibility, DIBP is extensively applied in the production of colored films, artificial leather, printing inks, and automotive coatings to achieve flawless surface finishes.
- Rubber Elasticity & Softening: Acting as a high-performance softener for both natural and synthetic rubber compounds, it enhances resilience, improves low-temperature flexibility, and optimizes processing behaviors during extrusion or molding.
Frequently Asked Questions (FAQ)
Q1: What is the main difference between Diisobutyl Phthalate (DIBP) and Dibutyl Phthalate (DBP)?
A: DIBP (C16H22O4) and DBP (C16H22O4) are structural isomers with highly identical molecular weights and chemical formulas. In industrial manufacturing, DIBP offers nearly identical plasticizing efficiency, gelation properties, and compatibility with PVC as DBP. Because of its excellent performance-to-cost ratio, DIBP is widely utilized as a direct or partial substitute for DBP to help manufacturers reduce raw material costs without sacrificing product flexibility.
Q2: Can DIBP be used in consumer goods like toys or food packaging?
A: No, DIBP is strictly recommended for industrial-grade applications. Like many classic phthalate plasticizers, DIBP faces strict international regulatory limitations regarding consumer goods, children’s toys, and direct food-contact materials. For applications requiring stringent non-toxic standards, we suggest consulting our technical team for eco-friendly, non-phthalate plasticizer alternatives.
Related Products
Related News
In the world of high-performance coatings, inks, and industrial cleaning, the choice of solvent is rarely “one size fits all.” […]
