Dioctyl terephthalate DOTP

Product Overview

Dioctyl Terephthalate (DOTP) — chemical name Di(2-ethylhexyl) terephthalate, CAS 6422-86-2 — is a colorless to slightly yellow oily liquid used as a primary plasticizer in PVC and other polymer applications. DOTP delivers a mix of high-temperature stability, low migration/volatility and good low-temperature flexibility, making it an excellent non-phthalate alternative to traditional phthalate plasticizers in cables, flexible PVC, artificial leather and specialty formulations.

Dioctyl terephthalate (DOTP) is an excellent main plasticizer used in polyvinyl chloride (PVC) plastics. Compared with the currently commonly used diisooctyl phthalate (DOP), it has the advantages of heat resistance, cold resistance, non-volatility, extraction resistance, softness and good electrical insulation properties, and shows excellent durability in products. , Soap water resistance and low temperature softness. Because of its low volatility, the use of DOTP can fully meet the temperature resistance requirements of wires and cables, and can be widely used in 70°C resistant cable materials (International Electrotechnical Commission IEC standards) and other various PVC soft products.
In addition to being widely used as a plasticizer for cable materials and PVC, DOTP can also be used in the production of artificial leather films. In addition, DOTP has excellent compatibility and can also be used as a plasticizer for acrylonitrile derivatives, polyvinyl butyral, nitrile rubber, nitrocellulose, etc. It can also be used as a plasticizer for synthetic rubber, coating additives, Precision instrument lubricant, lubricant additive, and can also be used as a paper softener.

Key Properties & Typical Specifications

Melting Point	-48 °C
Boiling Point	400 °C (lit.)
Density	0.986 g/mL at 25 °C (lit.)
Vapor Pressure	1 mm Hg ( 217 °C)
Refractive Index	n20/D 1.49(lit.)
Fp	230 °F
Storage Temp.	2-8°C
Solubility	Aqueous Base (Slightly)
Form	Liquid
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