TRIETHYL PHOSPHATE

CAS Number: 78-40-0
EC Number: 201-114-5
Formula: C6H15O4P / (C2H5)3PO4
Molecular mass: 182.2

Triethyl phosphate is a chemical compound with the formula (C2H5)3PO4. 
Triethyl phosphate is a colorless liquid. 
Triethyl phosphate is the triester of ethanol and phosphoric acid and can be called "phosphoric acid, triethyl ester".
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".

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 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.
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.

History
Triethyl phosphate was studied for the first time by French chemist Jean Louis Lassaigne in the early 19th century.

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 a trialkyl phosphate that is the triethy ester derivative of phosphoric acid. 
Triethyl phosphate derives from an ethanol.

USES
-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
-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

Consumer Uses
Building/construction materials not covered elsewhere
Fabric, textile, and leather products not covered elsewhere
Forest fire suppression.
Intermediate

Industry Processing Sectors
Agriculture, forestry, fishing and hunting
All other basic organic chemical manufacturing
Construction
Plastics product manufacturing
Textiles, apparel, and leather manufacturing

Formula: C6H15O4P / (C2H5)3PO4
Molecular mass: 182.2
Boiling point: 215°C
Melting point: -57°C
Relative density (water = 1): 1.07
Solubility in water: miscible
Vapour pressure, Pa at 20°C: 20
Relative vapour density (air = 1): 6.3
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 116°C o.c.
Auto-ignition temperature: 452°C
Octanol/water partition coefficient as log Pow: 0.8  

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).

Applications/uses
Process solvents
 
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

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.

About this substance
Helpful information
ThisTriethyl phosphateance 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
Other release to the environment of Triethyl phosphate 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), indoor use in long-life materials with high release rate (e.g. release from fabrics, textiles during washing, removal of indoor paints) and 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)).
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).

Widespread uses by professional workers
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 Triethyl phosphate is likely to occur from: outdoor use and indoor use.

Triethyl phosphates 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.

Formulation or re-packing
Triethyl phosphate is used in the following products: polymers, plant protection products and adhesives and sealants.
Release to the environment of Triethyl phosphate 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 Triethyl phosphate can occur from industrial use: in the production of articles, in processing aids at industrial sites and for thermoplastic manufacture.

Manufacture
Release to the environment of Triethyl phosphate can occur from industrial use: manufacturing of the substance.
Triethyl phosphate is a useful synthetic intermediate used in the synthesis of mesoporous spheres of metal oxides and phosphates.
Triethyl Phosphate Mainly used for high boiling point solvents, catalysts, plasticizers, flame retardants, ethyl agent, organic peroxide stabilizer.

Triethyl Phosphate is a liquid form, kosher resin intermediate that effectively reduces viscosity and can be used as a synergist for flame resistance.
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 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".
Triethyl phosphate (TEP) is a clear, colorless liquid with a mild pleasant odor. Triethyl phosphate is also called phosphoric acid and triethyl ester.

Occurrence/Use
Industrial catalyst, desensitizing agent for peroxides, ethylating agent, plasticizer, color inhibitor for fibers and other polymers, solvent for aromatic halogenations and nitrations, flame retardant, anti-foaming agent; stabilizer in pesticides

APPLICATION
Triethyl phosphate, Cas 78-40-0 - used in other industrial branches as a solvent, plasticizer, flame retardant or intermediate for the production of pharmaceuticals, and lacquers.

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.

Properties
Chemical formula: C6H15O4P
Molar mass: 182.15 g/mol
Density: 1.072 g/cm3
Melting point: −56.5 °C (−69.7 °F; 216.7 K)
Boiling point: 215 °C (419 °F; 488 K)
Solubility in water: Miscible
Magnetic susceptibility (χ): -125.3·10−6 cm3/mol

General Description    
Triethyl phosphate [78-40-0] is a colorless, corrosive liquid. Combustible. 
Slowly dissolves in water and sinks in water. 
Severely irritates skin, eyes and mucous membranes. 
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.

Industrial uses    
-Plasticizer for cellulose acetate, resins, plastics, gums.
-Flame retardant additive in unsaturated polyester resins.
-Solvent; lacquer remover.
-Catalyst.
-Chemical intermediate; ethylating agent.

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. 

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
1705772 [Beilstein]
201-114-5 [EINECS]
78-40-0 [RN]
MFCD00009077 [MDL number]
Phosphate de triéthyle [French] [ACD/IUPAC Name]
Phosphoric acid triethyl ester
Phosphoric acid, triethyl ester [ACD/Index Name]
TC7900000
TEP
Triethyl phosphate [ACD/IUPAC Name]
Triethylfosfat [Czech]
Triethylphosphat [German] [ACD/IUPAC Name]
Triethylphosphate
(C2H5O)3PO
[78-40-0]
135942-11-9 [RN]
4-01-00-01339 (Beilstein Handbook Reference) [Beilstein]
EINECS 201-114-5
Ethyl phosphate (VAN)
http:////www.amadischem.com/proen/509570/
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:45927
InChI=1/C6H15O4P/c1-4-8-11(7,9-5-2)10-6-3/h4-6H2,1-3H
NCGC00091606-02
o-Phosphoric acid triethyl ester
Phosphoric acid triethyl ester, TEP
TEN
triethoxy-hydroxyphosphanium
triethoxy-hydroxy-phosphanium
triethoxy-hydroxyphosphonium
triethoxy-hydroxy-phosphonium
Triethoxyphosphine oxide
TRI-ETHYL PHOSPHATE
Triethyl Phosphate (TEP)
Triethyl phosphate(TEP)
TRIETHYL PHOSPHATE, 99%
Triethyl phosphate,C6H15O4P,78-40-0
Triethyl Phosphate-d15
TRIETHYL-13C6 PHOSPHATE
Triethyl-d15-phosphate
Triethylfosfat
Triethylfosfat [Czech]
tri-ethylphosphate

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