1. Product Introduction & Main Application
Arnico’s Dioctyl Phthalate (DOP) is a clear, colorless, and odorless oily liquid, produced by the esterification reaction of phthalic anhydride with 2-ethyl hexanol. This substance is the most widely used general-purpose plasticizer in the world, added to Polyvinyl Chloride (PVC) to transform it from a hard, brittle material into a soft, flexible, and durable product.
2. Technical Specifications
| Technical Parameter | Standard Grade | Premium Grade | Unit |
|---|---|---|---|
| Purity (Ester Content) | ≥ 99.5 | ≥ 99.8 | % |
| Density (20°C) | 0.984 – 0.986 | 0.985 – 0.986 | g/cm³ |
| Acidity (as Phthalic Acid) | ≤ 0.01 | ≤ 0.005 | % |
| Water | ≤ 0.1 | ≤ 0.05 | % |
| Color (APHA) | ≤ 20 | ≤ 10 | Pt-Co |
| Volatility (24h, 100°C) | ≤ 0.5 | ≤ 0.3 | % |
| Refractive Index (25°C) | 1.485 – 1.487 | 1.486 – 1.487 | – |
3. Features & Benefits
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Excellent Low-Temperature Flexibility: A very low pour point (below -50°C) keeps the PVC product soft and crack-free in cold conditions.
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Complete PVC Compatibility: Provides a fast and uniform uptake by the PVC resin, making the mixing process easy and cost-effective.
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Good Thermal & UV Stability: Resists degradation during the extrusion process and maintains product properties over its useful life.
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Suitable Electrical Resistance: A good insulator, making it suitable for insulating low-voltage electrical cables.
4. Industrial Applications
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Cable & Wire Industry: The primary plasticizer in the insulation and sheathing of electrical wires.
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Flooring & Wall Covering Industry: The production of roll and tile PVC flooring.
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Artificial Leather: Upholstery, handbags, and clothing.
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Hoses & Tubing: Transparent, flexible garden and industrial hoses.
5. Safety & Handling
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MSDS (Material Safety Data Sheet): This substance is not acutely toxic, but is recognized as an endocrine-disrupting chemical (EDC) and is restricted in some consumer products. The Arnico MSDS file must be obtained.
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Storage Conditions: Store in carbon steel or stainless steel tanks, sealed, at a temperature of 15-40°C, away from moisture and strong oxidizers.
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Personal Protective Equipment (PPE): When handling hot material, the use of chemical-resistant gloves and safety goggles is recommended.
6. Quality Assurance & COA
Arnico DOP shipments are accompanied by a Certificate of Analysis (COA) detailing the ester content, color, and acidity
