Trioctyl phosphate CAS 78-42-2, as a flame retardant, plasticizer, and extractant, is widely used in chemical production, and its most important use is in the production of hydrogen peroxide. Trioctyl phosphate, as a solvent for hydroanthraquinone, has high solubility in hydroanthraquinone, high distribution coefficient of hydrogen peroxide between water and solvent, high boiling point, and high ignition point.

Chinese name: Trioctyl phosphate

Chemical name: tris (2-ethylhexyl) phosphate

English name: trioctyl photosphate

Abbreviation: TOP

CAS number: 78-42-2

EINECS number: 201-116-6

Molecular formula: (C8H17O) 3PO

Molecular weight: 434.63

Physical and chemical properties

Appearance and properties: colorless, odorless, transparent, viscous liquid

Main use: used as a flame retardant, plasticizer, extractant, and anthraquinone solvent

Melting point: -70 ℃

Relative density (water=1): 0.92

Saturated vapor pressure: 0.28KPa

Solubility: insoluble in water, soluble in alcohol, benzene, etc

Purpose

Trioctyl phosphate (TOP), originally used as a plasticizer, has good solubility, low softness, flame retardancy, and bacterial resistance, and is widely used in plastic and fiber processing. Trioctyl phosphate is mainly used in the production of hydrogen peroxide using anthraquinone method instead of hydrogenated terpineol, resulting in high concentration, good quality, and low self consumption of the product.

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