Dioctyl Terephthalate (DOTP) is a high-performance, general-purpose, non-phthalate plasticizer widely recognized as one of the safest and most environmentally friendly alternatives to traditional phthalate plasticizers such as DEHP (DOP), DINP, and DIDP.
Manufactured through the esterification of terephthalic acid with 2-ethylhexanol, DOTP offers excellent compatibility with PVC and other polar polymers, delivering superior flexibility, durability, and long-term performance in flexible PVC applications.

 

Technical Specifications

ITEMS SPECIFICATIONS
Appearance Colorless transparent liquid
Content ≥99.0%
Color (Pt-Co) ≤30
Acidity (mgKOH/g) ≤0.1
Water content ≤0.15%
Relative density(25/25°C) 0.981〜0.986
Heavy metal (base on Pb) ≤10
Arsenic(As), mg/kg ≤1

 

Packaging and Storage

  • Net weight 200kgs steel drum, 16MT/FCL with pallets
  • Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

 

Key Features and Benefits

  • Excellent compatibility with PVC and other polar polymers
  • Superior low-temperature flexibility and heat stability compared to DEHP
  • Low volatility and migration, extending product lifespan
  • Superior electrical properties – ideal for cable and wire insulation
  • Low odor and low fogging characteristics for automotive interiors
  • Lower carbon footprint compared to traditional phthalates

 

Applications of Dioctyl Terephthalate (DOTP)

PVC Plasticizer:
Direct eco-friendly substitute for traditional phthalate plasticizers (especially DOP/DEHP)
Widely used in products required to be phthalate-free, such as:
Children’s toys and baby products
Food-contact materials (food packaging films, cling wrap, bottle cap seals, etc.)
Medical devices (blood bags, IV tubing, etc.)
Flooring, artificial leather, cable compounds, seals, etc.

High-Performance Soft PVC Products:
Superior cold resistance, heat resistance, and low volatility compared to general-purpose plasticizers (e.g., DOP)
Particularly suitable for 70–90°C grade wire and cable compounds
Automotive interior parts (dashboards, door trim skins, etc., requiring low fogging and low volatility)

Plasticizer for Other Polymers and Rubbers:
Used in PVB (safety glass interlayers)
Applied in certain specialty rubbers such as neoprene, nitrile rubber (NBR), and acrylic rubber (ACM)

Coatings, Inks, and Adhesives:
Serves as a plasticizer in fast-drying coatings and inks to improve flexibility and adhesion

Other Specialized Applications:
Additive in high-performance lubricating base oils
Softening agent in cosmetics

 

Frequently Asked Questions (FAQs)

How does Dioctyl Terephthalate (DOTP) compare to other non-phthalate plasticizers such as DOTP vs. DINCH or ATBC?
DOTP offers better heat stability and electrical properties than DINCH, and significantly better permanence than citrate-based ATBC. It is the preferred choice for 70–90 °C cable compounds and automotive interiors.

Is Dioctyl Terephthalate (DOTP) biodegradable?
DOTP itself is not readily biodegradable; however, it has significantly lower environmental persistence and bioaccumulation potential compared to ortho-phthalates (BCF < 100).

Can Dioctyl Terephthalate (DOTP) be used in food-contact applications?
Yes. DOTP is approved under FDA 21 CFR 178.3910 and EU 10/2011 (with specific migration limits) for certain indirect food-contact applications.

Is Dioctyl Terephthalate (DOTP) compatible with other plasticizers?
Yes. DOTP shows excellent compatibility with polymeric plasticizers, ESO, and most general-purpose plasticizers, allowing hybrid formulations for cost-performance optimization.

Is Dioctyl Terephthalate (DOTP) approved for food contact and medical applications?
Yes. DOTP meets FDA 21 CFR 178.3910, EU 10/2011, and many national regulations for indirect food contact. Medical-grade DOTP variants are widely used in non-DEHP IV bags, tubing, and blood bags.

 

Where can I buy high-quality Dioctyl Terephthalate (DOTP)?

You can contact us via email [email protected] for offers and bulk orders.