Tris(2-ethylhexyl) Phosphate CAS#78-42-2

1. CAS Registry Number: 78-42-2

2. Molecular Formula: C₂₄H₅₁O₄P

3. Alternative Names:

  • 2-Ethyl-1-hexanol phosphate

  • Tris(2-ethylhexyl) phosphate

  • Trioctyl phosphate

4. Physical State: Clear, transparent liquid

5. Minimum Order Quantity: One full container load (FCL)

Products Description

Tris(2-ethylhexyl) phosphate is a clear, viscous liquid that serves multiple functions across industrial formulations—acting as a vinyl stabilizer, a grease additive, and a component in flame-retardant systems. Its primary role, however, lies in plasticizing vinyl plastics and synthetic rubber compounds.

Beyond general plasticizing duties, it is valued as a flame-retardant plasticizer specifically for vinyl products that must remain flexible at low temperatures, with military tarpaulins being a notable example. When blended with conventional plasticizers such as phthalate esters, it further enhances the low-temperature flexibility of the resulting formulation.

Tris(2-ethylhexyl) phosphate

Products Chemical Properties

Melting point -70°C
Boiling point 215 °C4 mm Hg(lit.)
density 0.92 g/mL at 20 °C(lit.)
vapor pressure 2.1 mm Hg ( 20 °C)
refractive index n20/D 1.444(lit.)
Fp >230 °F
storage temp. Store below +30°C.
solubility <0.001g/l
form Liquid
Specific Gravity0.93
color Colourless
PH7 (H2O, 20℃)
Water Solubility <0.1 g/100 mL at 18 ºC
BRN 1715839
CAS DataBase Reference78-42-2(CAS DataBase Reference)
NIST Chemistry Reference2-Ethylhexanol phosphate (3:1)(78-42-2)
EPA Substance Registry SystemTris(2-ethylhexyl) phosphate (78-42-2)
ECETOC JACC REPORTTris(2-ethylhexyl) phosphate (78-42-2)

 Safety Information

Hazard   Codes Xi
Risk Statements 38
Safety Statements 23-43-24/25
WGK Germany 2
RTECS MP0770000
Autoignition Temperature370 °C
TSCA TSCA listed
Product NameFuRuiDa
Hazardous Substances Data78-42-2(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 37000 mg/kg LD50 dermal Rabbit   20000 mg/kg

Products Application

Tris(2‑ethylhexyl) phosphate works as an effective phosphorus‑containing flame retardant, which can bring desirable flame‑retardant performance to different polymer systems. Beyond its fire‑resistance function, the material also finds special use within sensor manufacturing. It is adopted as a functional plasticizer for producing high‑performance potentiometric membrane sensors, helping to optimize membrane flexibility and improve the stability of sensor response during practical operation.

Company Profile

Shandong Furuida Chemical Co., Ltd. is an internationally‑oriented chemical trading enterprise located in the core chemical industrial zone of Shandong Province. Supported by our self‑owned standardized production facilities, we integrate production, quality control, cross‑border trade and global logistics, and maintain independent manufacturing capacity together with the ability to develop markets around the world.

We focus on supplying basic chemical raw materials, fine chemical intermediates, chemical additives, as well as rubber and plastic raw materials. These products are widely applied in rubber‑plastics, coatings, daily‑use chemicals, building materials and textile industries. We offer customized product solutions and complete one‑stop foreign‑trade services, covering customs clearance, logistics arrangement and after‑sales technical support. In response to common industry difficulties including supply volatility, price markups from intermediate links, uneven product quality and delayed shipments, we operate under a factory‑direct supply model with transparent and stable pricing policies. Our comprehensive full‑process quality control system guarantees consistent and dependable product quality, while well‑developed cross‑border logistics effectively shortens delivery lead‑times. Our business covers Asia, Europe, the Americas, the Middle East and many other regions across the globe. We provide high‑quality, cost‑competitive chemical raw materials and professional services for domestic and overseas chemical manufacturers, end‑processing plants and cross‑border traders.

Tris(2-ethylhexyl) phosphate
Tris(2-ethylhexyl) phosphate

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