Di-2-ethylhexyl Terephthalate; Dioctyl Terephthalate; DP-28 (DOTP) C24H38O4 CAS 6422-86-2

Di-2-ethylhexyl Terephthalate; Dioctyl Terephthalate; DP-28 (DOTP) C24H38O4 CAS 6422-86-2

Di-2-ethylhexyl terephthalate (DOTP) is an organic compound with the molecular formula C24H38O4. It is a transparent oily liquid, insoluble in water, and soluble in general organic solvents.
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Description
Technical Parameters
Introduction

 

Name: Dioctyl terephthalate (DOTP)

CAS No:6422-86-2

Molecular C24H38O4

Dioctyl terephthalate (DOTP) is a high-performance main plasticizer used in polyvinyl chloride (PVC) plastics. Compared with the commonly used diisoocityl phthalate (DOP), it features advantages such as heat resistance, cold resistance, difficulty in volatilization, extraction resistance, excellent softness, and good electrical insulation performance.

 

Specifications

 

Item

Standard

Appearance

Colorless transparent liquid

Content %

≥ 99.6

Color (Pt-Co)

≤ 30

Water %

≤ 0.05

Acidity (KOH mg/g) at normal temperature

≤ 0.05

Refractive index g/cm³ (25℃/D)

1.482-1.488

Refractive density g/cm³ (25℃)

0.979-0.989

Volume resistivity Ω*cm (20℃)

≥ 1.2×109

Heavy metals (as Pb) ppm

≤ 10

Arsenic ppm

≤ 3

 

Packing:200 kg/drum.

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Application

 

1. In addition to being widely used as a plasticizer for cable materials and PVC, DOTP can also be used to produce artificial leather films.

2. DOTP has excellent intermiscibility and can be used as a plasticizer.

3. Also used as coating additive, precision instrument lubricant, lubricant additive, and softening agent for paper.

 

Chemical & physical properties

 

Molecular formula

C24H38O4

Molecular weight

390.56

CAS NO

6422-86-2

EINECS NO

229-176-9

Density

0.986 g/mL

Appearance

Clear liquid

Melting point

-48℃

Boiling point

400℃

 

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