Tri-isobutyl phosphate

Other Trading Names:

  • orthophosphoric acid
  • Tris(2-methylpropyl) phosphate
  • Phosphoric Acid Tributyl ester
  • phosphate (TIBP)
  • phosphoric acid tri-isobutyl ester

CAS Number: 126-71-6

HS Code: 2919-90-00

Types of Packaging:

  • 200kg Iron Drum/16 Tons/20ft Container
  • 1000kg IBC Drum/20 Tons/20ft Container
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Tri-isobutyl phosphate

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Chemical Name

Tri-isobutyl phosphate

Molecular Formula


CAS Number




Color APHA

10 Max.

Refractive Index


Specific gravity




Acid value mg KOH/g


Chemical Description 

  • Triisobutyl phosphate is a very strong solvent used for liquefying concrete, textile auxiliaries, paper coating compounds, etc.
  • Triisobutyl phosphate (TiBP) is a very strong, polar solvent. It is mainly used as an antifoaming agent in various aqueous systems where it has the ability to both destroy foam and act as a foam inhibitor.
  • TiBP is also used in the production of solutions of synthetic resins and natural rubber. In both cellulose-based plastics and synthetic resins, it is used as a flame-retarding plasticizer.
  • TiBP is employed as a pasting agent for pigment pastes. Due to the limited influence of temperature on the viscosity of TiBP, it also serves as an important component in the manufacture of hydraulic fluids for aircraft.
  • As a very strong wetting agent, TiBP is used in the textile industry and in the field of adhesives.
  • Advances in technological development over the last couple of centuries have led to the use of synthetic carbon-based polymers for everyday household and office items, where once wood or metal were desired.
  • The high fuel values for some of these materials could pose danger where risk of combustion is high; therefore, flame retardants have been introduced into and coating for electronic devices. These substances have a broad application field and good fire safety performance.
  • They are designed to minimize the risk of a fire in the event of contact with a small heat source such as a cigarette. A wide range of different flame retardants is produced, because many materials and products that are to be rendered fire safe are very different in nature and composition.
  • Therefore, having variety in flame retardant products is necessary so as to retain key material functionality. For example, plastics have a wide range of mechanical and chemical properties and differ in combustion behavior. These materials in particular are the main focus of phosphate ester flame retardants.
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Tri-isobutyl phosphate