20224-50-4

Basic information

• Product Name: TRI-TERT-BUTYLPHOSPHATE
• Synonyms: TRI-TERT-BUTYLPHOSPHATE
• CAS NO: 20224-50-4
• Molecular Formula: C₁₂H₂₇O₄P
• Molecular Weight: 266.31
• Mol File: 20224-50-4.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 288.1°Cat760mmHg
• Flash Point: 142°C
• Appearance: /
• Density: 0.986g/cm³
• Vapor Pressure: 0.00413mmHg at 25°C
• Refractive Index: 1.429
• CAS DataBase Reference: TRI-TERT-BUTYLPHOSPHATE(CAS DataBase Reference)
• NIST Chemistry Reference: TRI-TERT-BUTYLPHOSPHATE(20224-50-4)
• EPA Substance Registry System: TRI-TERT-BUTYLPHOSPHATE(20224-50-4)

Safety Data

• Hazardous Substances Data: 20224-50-4(Hazardous Substances Data)

Usage

General Description

Tri-tert-butylphosphate, also known as TTBPA, is an organophosphorus compound with the chemical formula C12H27O4P. It is a colorless liquid with a pungent odor and is commonly used as a flame retardant in plastics, especially in electrical and electronic products. TTBPA works by forming a protective layer on the surface of the material, preventing the spread of flames in case of fire. However, there are concerns about its potential negative effects on human health and the environment, particularly regarding its persistence and bioaccumulation. As a result, there is ongoing research and regulation surrounding the use and disposal of TTBPA.

InChI:InChI=1/C12H27O4P/c1-10(2,3)14-17(13,15-11(4,5)6)16-12(7,8)9/h1-9H3

Upstream product

• 101-02-0 triphenyl phosphite 
• 1876-22-8 di-tert-butyl diperoxyoxalate 
• 15205-62-6 tri(tert-butyl)phosphite 
• 80-15-9 Cumene hydroperoxide 
• 75-65-0 tert-butyl alcohol 

Relevant articles and documents

Synthesis of Trialkyl Phosphates from White Phosphorus

A new method was proposed for preparing trialkyl phosphates directly from white phosphorus by its electrolysis in a mixture of acetonitrile, alcohol, and water with tetraethylammonium iodide as supporting electrolyte. To increase the amount of the product synthesized in the unit volume of the electrolyte solution and the productivity of the process, phosphorus and water are added to the electrolyte in portions, which allows synthesis of up to 1 mol of trialkyl phosphate in 1 1 of the electrolyte solution.

Reaktionen trivalenter Phosphorverbindungen mit tert-Butoxylradikalen

The products of the reaction of several alkyl, aryl, sterically hindered aryl and cyclic phosphites, thiophosphites, benzenephosphonites and triphenylphosphine with tert-butoxyl radicals generated by thermolysis of di-tert-butyl peroxalate (DTBPO) in chlorobenzene at 50 deg C was studied. Alkyl phosphites are oxidized to the corresponding phosphates by β-scission of the intermediate phosphoranyl radicals.Phenyl phosphites react under displacement of a phenoxyl to give tert-butyl phosphites by α-scission of the intermediate phosphoranyl radicals.Sterically hindered p-methyl-phenyl phosphites also form the tert-butyl phosphites accompanied by rearranged p-hydroxyphenylmethanephosphonates.Cyclic arylene phosphites are predominantly oxidized, substitution takes place to a minor extent. Benzenephosphonites and phosphines react with tert-butoxyl radicals by oxidation to give the corresponding phosphonates and phosphine oxide, resp. Those phosphorus compounds which are oxidized with the formation of tert-butyl radicals accelerate the thermal decomposition of DTBPO under the condition studied.