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CAS NO: 78-40-0
EC NUMBER: 201-114-5
Triethyl phosphate is a chemical compound with the formula (C2H5)3PO4 or OP(OEt)3.
Triethyl phosphate is a colorless liquid.
Triethyl phosphate is the triester of ethanol and phosphoric acid and can be called "phosphoric acid, triethyl ester".
A colorless, corrosive liquid. Combustible. Slowly dissolves in water and sinks in water.
Severely irritates skin, eyes and mucous membranes.
Triethyl phosphate's primary uses are as an industrial catalyst (in acetic anhydride synthesis), a polymer resin modifier, and a plasticizer (e.g. for unsaturated polyesters).
In smaller scale it is used as a solvent for e.g. cellulose acetate, flame retardant, an intermediate for pesticides and other chemicals, stabilizer for peroxides, a strength agent for rubber and plastic including vinyl polymers and unsaturated polyesters, etc.
Physical Description
Triethyl phosphate appears as a colorless, corrosive liquid. Combustible.
Slowly dissolves in water and sinks in water.
Severely irritates skin, eyes and mucous membranes.
Triethyl phosphate is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 10 000 to < 100 000 tonnes per annum.
Triethyl phosphate is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
Consumer Uses
Triethyl phosphate is used in the following products: polymers, adhesives and sealants, coating products, fillers, putties, plasters, modelling clay and leather treatment products.
Other release to the environment of this substance is likely to occur from: indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment), outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials), outdoor use in long-life materials with high release rate (e.g. tyres, treated wooden products, treated textile and fabric, brake pads in trucks or cars, sanding of buildings (bridges, facades) or vehicles (ships)), indoor use in long-life materials with high release rate (e.g. release from fabrics, textiles during washing, removal of indoor paints), indoor use and outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives).
Article service life
Triethyl phosphate can be found in complex articles, with no release intended: vehicles and machinery, mechanical appliances and electrical/electronic products (e.g. computers, cameras, lamps, refrigerators, washing machines).
Triethyl phosphate can be found in products with material based on: plastic (e.g. food packaging and storage, toys, mobile phones), stone, plaster, cement, glass or ceramic (e.g. dishes, pots/pans, food storage containers, construction and isolation material), leather (e.g. gloves, shoes, purses, furniture) and rubber (e.g. tyres, shoes, toys).
Triethyl phosphate is used in the following products: polymers, adhesives and sealants, plant protection products, coating products and fillers, putties, plasters, modelling clay.
Triethyl phosphate is used in the following areas: agriculture, forestry and fishing.
Other release to the environment of this substance is likely to occur from: outdoor use and indoor use.
Triethyl phosphate is used in the following products: polymers, plant protection products and adhesives and sealants.
Release to the environment of this substance can occur from industrial use: formulation of mixtures and formulation in materials.
Uses at industrial sites
Triethyl phosphate is used in the following products: polymers, leather treatment products and pH regulators and water treatment products.
Triethyl phosphate has an industrial use resulting in manufacture of another substance (use of intermediates).
Triethyl phosphate is used for the manufacture of: chemicals, plastic products and textile, leather or fur.
Release to the environment of this substance can occur from industrial use: in the production of articles, in processing aids at industrial sites and for thermoplastic manufacture.
Release to the environment of this substance can occur from industrial use: manufacturing of the substance.
USE AREAS
General adhesives and binding agents for a variety of uses
Related to the building or construction process for buildings or boats (includes activities such as plumbing and electrical work, bricklaying, etc)
Materials used in the building process, such as flooring, insulation, caulk, tile, wood, glass, etc.
Casting agents or molding compounds for plastics, sand, or metals
Agents of chemical warfare
Fillers for paints, textiles, plastics, etc
Fire prevention materials, or additives/coatings to prevent flammability in paints, textiles, plastics, etc
Includes food packaging, paper plates, cutlery, small appliances such as roasters, etc.; does not include facilities that manufacture food
Additive for products to promote hardening, used in paints and varnishes, plastics, etc.
Related to electrical work (such as wiring of a building), electric current insulation materials, or other electrical components
Consumer electronic equipment of all types, including phones, computers, cameras etc. and related electronic componenets (motherboards, software, chargers)
Related to computers or the manufacturing of computers
Manufacturing of or related to machinery, for production of cement or food, air/spacescraft machinery, electrical machinery, etc
Plastic products, industry for plastics, manufacturing of plastics, plastic additives
Rubber products (e.g. tires) and their manufacture
Includes spices, extracts, colorings, flavors, etc added to food for human consumption
Inert ingredients in a pesticide
Accelerators, activators, oxidation agents, reducing agents, etc
Raw materials used in a variety of products and industries (e.g. in cosmetics, chemical manufacturing, production of metals, etc
Related to fracking, natural gas, industrial gases
Paint removers, graffiti removers, or general solvents
Used as a catalyst in the production of acetic anhydride by the ketene process, as a desensitizing agent for peroxides, and as a solvent and plasticizer for cellulose acetate.
Solvent; plasticizer for resins, plastics, gums; catalyst; lacquer remover.
As a plasticizer, solvent, fire-retarding agent, anti-foaming agent
As an ethylating agent, and as a raw material to prepare insecticides such as tetraethyl pyrophosphate.
As ethylating agent; formation of polyesters which are used as insecticides.
Industry Uses
Flame retardants
Intermediates
Process regulators
Plasticizer for cellulose acetate, resins, plastics, gums.
Flame retardant additive in unsaturated polyester resins.
Solvent; lacquer remover.
Catalyst.
Chemical intermediate; ethylating agent.
Consumer Uses
Building/construction materials not covered elsewhere
Fabric, textile, and leather products not covered elsewhere
Forest fire suppression.
Intermediate
Methods of Manufacturing
Prepared from tetraethyl hypophosphate with ethanol in the presence of aluminum ethoxide;
Manufactured by treating triethylphosphite with diethyl hydrogen phosphate.
General Manufacturing Information
Industry Processing Sectors
Agriculture, forestry, fishing and hunting
All other basic organic chemical manufacturing
Construction
Plastics product manufacturing
Textiles, apparel, and leather manufacturing
Chemical Properties
Triethyl phosphate is a colorless, high-boiling liquid and containing 17 wt % phosphorus; mild odor.
Very stable at ordinary temperatures, compatible with many gums and resins, soluble in most organic solvents, miscible with water.
When mixed with water is quite stable at room temperature, but at elevated temperatures it hydrolyzes slowly. Combustible.
Triethyl phosphate is manufactured from diethyl ether and phosphorus pentoxide via a metaphosphate intermediate.
Triethyl phosphate has been used commercially as an additive for polyester laminates and in cellulosics.
In polyester resins it functions as a viscosity depressant and as a flame retardant.
The viscosity-depressant effect of triethyl phosphate in polyester resin permits high loadings of alumina trihydrate, a fire- retardant smoke-suppressant filler.
Triethyl phosphate has also been employed as a flame-resistant plasticizer in cellulose acetate. Because of its water solubility, the use of triethyl phosphate is limited to situations where weathering resistance is unimportant.
The halogenated alkyl phosphates are generally used for applications where lower volatility and greater resistance to leaching are required.
Uses
Triethyl phosphate is use as a flame retardant in the manufacture of polyisocyanurate (PIR) and polyurethane (PUR) foam insulation and thermoset plastic products.
The chemical compound is also used as a viscosity reducer in plastic resins, and as a catalyst, solvent or intermediate in the production of pesticides, pharmaceuticals, lacquers and other products.
As ethylating agent; formation of polyesters which are used as insecticides.
Purification Methods
Dry the ester by refluxing Triethyl phosphate with solid BaO and then fractionally distil Triethyl phosphate under reduced pressure.
Triethyl phosphate is kept over Na and distilled.
Store Triethyl phosphate in the receiver protected from light and moisture.
Alternatively Triethyl phosphate is dried over Na2SO4 and distilled under reduced pressure.
The middle fraction is stirred for several weeks over anhydrous Na2SO4 and again fractionated under reduced pressure until the specific conductance reaches a constant low value of 25 1.19 x 108, 40 1.68 x 108, and 55 2.89 x 108 ohm-1 cm.
Triethyl phosphate has also been fractionated carefully under reduced pressure through a glass helices-packed column.
Triethyl phosphate is soluble in EtOH, Et2O and H2O (dec).
Triethyl phosphate is an alkyl phosphate.
Triethyl phosphate participates in the thermal transformation of sodium acetate-2-C14 to n-butyl acetate-2-C14.
TEP (Triethyl Phosphate) is a clear, colorless liquid having a mild pleasant odor.
Triethyl phosphate is useful as a solvent in many applications, as a plasticizer for tough, fire-resistant plastics, and as an agricultural chemical as an intermediate in preparing tetraethyl pyrophosphate (TEPP).
TEP – (Triethyl Phosphate) is a flame retardants that shows low acute toxicity following oral, dermal or inhalation exposures.
Triethyl phosphate’s a slight skin and eye irritant and is not genetically active.
Applications
Triethyl phosphate finds it major applications in plastics industry as a flame retardant, plasticizer and carrier, where it is available in the matrix.
A further 10 to 20 % are used in other industrial branches as a solvent, plasticizer, flame retardant or intermediate for the production of pharmaceuticals, and lacquers.
Triethyl phosphate is a useful synthetic intermediate used in the synthesis of mesoporous spheres of metal oxides and phosphates.
Triethyl phosphate is also used as an industrial catalyst employed in ketene synthesis where the compound is hydrolyzed, as a polymer resin modifier, as a solvent, a car paint repairing product and as flame retarder
Triethyl phosphate is a colorless liquid at ambient temperatures.
The chemical has a mild, characteristic odor.
Uses:
Triethyl phosphate is sold by LANXESS for use as a flame retardant in the manufacture of polyisocyanurate (PIR) and polyurethane (PUR) foam insulation and thermoset plastic products.
The chemical compound is also used as a viscosity reducer in plastic resins, and as a catalyst, solvent or intermediate in the production of pesticides, pharmaceuticals, lacquers and other products.
Triethyl Phosphate (TEP) is a colorless, corrosive, mild odor solvent with chemical formula (C2H5)3PO4 which is also known as Phosphoric acid triethyl ester.
The compound is primarily used as a catalyst in the production of acetic anhydride by ketene process, as a solvent and plasticizer for resins, plastics, gums, etc.
Triethyl Phosphate is also used as a raw material in the synthesis of insecticides such as tetraethyl pyrophosphate.
Triethyl Phosphate can be prepared by various processes, by reacting tetraethyl hypophosphate with ethanol in the presence of aluminium ethoxide, by treating triethyl phosphite with diethyl hydrogen phosphate and also by diethyl ether and phosphorus pentoxide via a metaphosphate intermediate
With the rising demand for the use of plasticizers for production of resins, plastics and gums, the Triethyl phosphate market growth is expected to be benefited from the potential since the chemicals serves as a good example of plasticizer to produce varied types of polymer.
Also, Triethyl Phosphate consumption is also understood to gain from increasing demand of fire retardant material from various end use industries such as construction, textiles, electrical and electronics, transportation, automobiles, etc.
Apart from industrial chemicals, another end use industry which is expected to augment the growth of Triethyl Phosphate is agrochemicals industry with the use of Triethyl Phosphate as an ingredient i.e. an intermediate for manufacturing of pesticides and insecticides.
The regulations related with safety standards and resultant hazards generating from synthetic chemicals also applies in the case of Triethyl Phosphate, where its controlled formulation and usage may result as a restraint to the rate of overall consumption.
Moreover, with the availability of substitutes, Triethyl Phosphate’s can be confined only to certain applications.
Triethyl phosphate (TEP) is useful as a plasticizer for flame resistant unsaturated polyester resins (used for fiberglass), a solvent for varied applications, and an agricultural chemical intermediate.
Triethyl phosphate uses and applications include
Intermediate for agriculture insecticides, floor polishes, lubricants, hydraulic fluids, aprotic solvent, flame-retardant plasticizer in cellulosic, polyester resins, PU, viscous depressant in polyester laminates, cellulosic, a catalyst for synthesizing ketene in production of acetic anhydride, lacquer remover, solvating and desensitizing agent for organic peroxides, solvent for textiles, dyeing assistant, in sizes, in food packaging adhesives.
Suggested storage of Triethyl phosphate:
Store in tightly closed containers in a cool, dry area away from oxidizing agents
IUPAC NAMES
Ethylphosphate, triethylester
phosphoric acid triethyl ester
Phosphoric acid, triethyl ester
riethyl phosphate
TEP
Tri Ethyl Phosphate
Tributylphosphat
TRIETHYL PHOSPHATE
Triethyl Phosphate
Triethyl phosphate
triethyl phosphate
TRIETHYL PHOSPHATE
Triethyl phosphate
triethyl phosphate
Triethylphosphat
Triethylphosphate
Triethylphosphate, Phosphoric acid triethyl ester, Triethyl orthophosphate,
trietile fosfato
SYNONYMS
TRIETHYL PHOSPHATE
78-40-0
Triethylphosphate
Phosphoric acid, triethyl ester
Tris(ethyl) phosphate
Triethoxyphosphine oxide
Triethylfosfat
TEP
Ethyl phosphate ((EtO)3PO)
Phosphoric Acid Triethyl Ester
o-Phosphoric acid triethyl ester
UNII-QIH4K96K7J
NSC 2677
Triethyl phosphate, 99%
Triethylfosfat [Czech]
CAS-78-40-0
Triethyl phosphate,C6H15O4P,78-40-0
Flame retardant TEP
Phosphoric acid ethyl
1228182-36-2
99% Triethyl Phosphate
ACMC-209pe7
Triethyl phosphate-[d15]
EC 201-114-5
SCHEMBL21887
Triethyl phosphate-[13C6]
MLS002152947
WLN: 2OPO&O2&O2
(C2H5O)3PO
Phosphoric acid triethyl ester
Triethyl Phosphate 78-40-0
CHEMBL1236251
DTXSID8026228
99% TEP
Flame retardant Triethyl Phosphate
ETHYL PHOSPHATE
ETHYL ACID PHOSPHATE
AURORA KA-1638
TEP
PHOSPHORIC ACID TRIETHYL ESTER
Ethyl phosphate, TEP
Phosphoric acid ethyl
Phosphoric acid triethyl
Triethyl phosphate 5g [78-40-0]
Triethyl phosphate 10g [78-40-0]
Triethyl phosphate,Ethyl phosphate, TEP
Triethyl phosphate,Ethyl phosphate
Triethyl phosphate, 99% 1KG
Triethyl Phospate(TEP)
TEP)Triethyl phosp
Triethyl Phosphate,FlaMe retardants TEP
Triethyl phosphate ReagentPlus(R), >=99.8%
Triethylphosph
TRIETHYL PHOSPHATE
(C2H5O)3PO
Ethyl phosphate ((EtO)3PO)
Ethyl phosphate, tri-
o-Phosphoric acid triethyl ester
phosphatedetriethyle
Phosphoric ether
triethoxyphosphineoxide
Triethylfosfat
Tris(ethyl) phosphate
Triethyl Phosphate (TEP)
Triethylphosphatecolorlessliq
TRIETHYL ORTHOPHOSPHATE
TRIETHYL PHOSPHATE, 99.8+%
TRIETHYL PHOSPHAYE
TriethylPhosphate,~99%
Triethylphosphate,98+%
Phosphorsuretriethylester
O,O,O-Triethylphosphate
TEP Ethyl phosphate Phosphoric Acid Triethyl Ester
Triethyl phosphate Vetec(TM) reagent grade, 98%
Flame Retardant TEP
Triethyl Phospate
Cefuroxime Impurity 46
TRIETHYL PHOSPHATE, 99%TRIETHYL PHOSPHATE, 99%TRIETHYL PHOSPHATE, 99%
Triethylphosphate@100 μg/mL in MeOH
Triethyl phosphate (TEP) @100 μg/mL in Toluene
TriethylPhosphate>
TRIETHYL PHOSPHATE FOR SYNTHESIS
Triethyl phosphate fandachem
riethylphosphate
