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Solvents REACH

Triisobutyl phosphate

CAS Number
126-71-6
EC Number
204-798-3
Chemical Formula
C12H27O4P
Molecular Weight
266.31 g/mol

Description

Triisobutyl phosphate (CAS 126-71-6 ), also known as TIBP, is an organophosphate ester used across industrial and specialty chemical applications as a solvent, plasticizer, and defoamer. Its controlled surface activity makes it effective at suppressing foam in process systems, while its solvency profile supports formulation work in coatings and polymer systems. In coatings and adhesives, TIBP functions as a coalescing solvent and plasticizer, improving film formation and flexibility in finished products for various industrial applications. Textile and paper processing operations use it as a defoaming agent in aqueous systems where foam buildup disrupts throughput and product quality during the manufacturing cycle. Printing ink formulators incorporate TIBP as a solvent carrier to control viscosity and pigment dispersion, ensuring consistent application and color quality in high-speed printing. In polymer and elastomer compounding, it acts as a secondary plasticizer and flame-retardant additive, contributing to both processability and compliance with fire performance requirements. Triisobutyl phosphate is supplied as a clear liquid in standard drum and IBC packaging. Technical grade is the primary commercial form, meeting purity specifications for industrial use. Specialty grades aligned to coatings or polymer end-use requirements may be available depending on supplier qualification standards and specific customer technical needs. Contact us for supply of Triisobutyl phosphate Request Quote

Other Names (Synonyms)

TiBP | Phosphoric acid, tris(2-methylpropyl) ester | Phosphoric acid, triisobutyl ester | 6MKE1AR3GB | RefChem:190784 | Isobutyl phosphate ((C4H9O)3PO)

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point<-60°C
Boiling Point90-92 °C @ Press: 0.75 Torr
Density0.9661 g/cm³ @ Temp: 20 °C
Flash Point150 °C
ColorColourless
FormOil
Water Solubility264mg/L at 25℃
Vapor Pressure0.002 hPa (20 °C)
Refractive Indexn 20/D 1.420
Log P3.72 at 25℃

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H317May cause an allergic skin reaction
H412Harmful to aquatic life with long lasting effects

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P321Specific treatment (see … on this label).
P501Dispose of contents/container in accordance with local regulations.
P352IF ON SKIN: Wash with plenty of water.
P317Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.

Trade & Regulatory

HS Code2919 90 00
Storage Class10 - Combustible liquids
WGK (Germany)1