Dioctyl Terephthalate

Dioctyl Terephthalate

Basic Information

Chemical Name: Dioctyl Terephthalate / Di(2-ethylhexyl) Terephthalate English Name: Dioctyl Terephthalate (DOTP)

Molecular Formula: C₂₄H₃₈O₄

Molecular Weight: 390.56 g/mol

CAS Number: 6422-86-2

Appearance and Properties: Colorless, transparent or slightly yellowish oily liquid, almost odorless

Physical Properties:

Boiling Point: Approximately 400℃ (high boiling point, low volatility)

Melting Point / Freezing Point: -48℃ (excellent low-temperature performance)

Density: 0.986 g/cm³ (25℃)

Viscosity: 63 mPa·s (25℃), 5 mPa·s (100℃)

Flash Point: Approximately 210℃ (High temperature, good safety)

Solubility: Almost insoluble in water, easily soluble in organic solvents such as ethanol, ether, and chloroform

Main Uses: Dioctyl terephthalate (DOTP) is an environmentally friendly plasticizer mainly used for the modification of PVC and various polymer materials. It can improve the flexibility, heat and weather resistance, and electrical insulation of products. It is widely used in cables, films, automotive interiors, medical devices, and other fields, and can also be used as a base oil for lubricants.