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Send EmailDioctyl Terephthalate, Bis 2-ethylhexyl Terephthalate, DOTP, 6422-86-2
Dioctyl Terephthalate (DOTP) is a non-phthalate plasticizer used in the polymer industry. It is an ester of terephthalic acid and 2-ethylhexanol. DOTP is known for its excellent plasticizing efficiency, good processing performance, superior thermal aging stability, high dielectric properties, high cold resistance, and low volatility.
Chemical Formula: C24H38O4
Molecular Weight: 390.56 g/mol
Appearance: Clear and slightly yellowish liquid
Purity: Minimum 99.0%
Acid Value: Maximum 0.01%
Water Content: Maximum 0.1%
Specific Gravity: 0.986±0.002 g/ml (at 20°C)
Flash Point: 210°C
Freezing Point: -50°C
Boiling Point: 400°C (at 760 mmHg)
Flooring: Used in various types of flooring materials
Food Packaging: Stretch films and other packaging materials
Toys: Safe for use in toys
Medical Applications: Used in medical devices and equipment
Cables and Wires: Used in the production of cables and wires
DOTP is preferred over other plasticizers like DOP (Di(2-ethylhexyl) phthalate) due to its non-carcinogenic nature and lower migration rate, making it safer for use in products that come into direct contact with humans.
Dioctyl Terephthalate (DOTP) is also known by several other names:
Bis(2-ethylhexyl) terephthalate
Di(2-ethylhexyl) terephthalate
DOTP
6422-86-2 (CAS number)
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% |