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Triethyl phosphate

Triethyl phosphate Structure
Triethyl phosphate
  • CAS No.78-40-0
  • Chemical Name:Triethyl phosphate
  • Synonyms:TEP;(C2H5O)3PO;Triethylfosfat;AURORA KA-1638;Triethylphosph;ETHYL PHOSPHATE;Phosphoric ether;Triethyl Phospate;TRIETHYL PHOSPHATE;TRIETHYL PHOSPHAYE
  • CBNumber:CB1854370
  • Molecular Formula:C6H15O4P
  • Formula Weight:182.15
  • MOL File:78-40-0.mol
Triethyl phosphate Property
  • Melting point: :-56 °C
  • Boiling point: :215 °C(lit.)
  • Density  :1.072 g/mL at 25 °C(lit.)
  • vapor density  :6.28 (vs air)
  • vapor pressure  :1 mm Hg ( 40 °C)
  • refractive index  :n20/D 1.403(lit.)
  • Flash point: :240 °F
  • storage temp.  :Store below +30°C.
  • solubility  :500g/l (slow decomposition)
  • form  :Liquid
  • color  :Clear
  • PH :7 (H2O, 20℃)
  • explosive limit :1.2-10%(V)
  • Water Solubility  :SOLUBLE
  • Merck  :14,9674
  • BRN  :1705772
  • Stability: :Stable. Combustible. Incompatible with strong oxidizing agents, water.
  • InChIKey :DQWPFSLDHJDLRL-UHFFFAOYSA-N
  • CAS DataBase Reference :78-40-0(CAS DataBase Reference)
  • NIST Chemistry Reference :Triethyl phosphate(78-40-0)
  • EPA Substance Registry System :Phosphoric acid, triethyl ester(78-40-0)
Safety
  • Hazard Codes  :Xn
  • Risk Statements  :22-36
  • Safety Statements  :25-26
  • RIDADR  :3278
  • WGK Germany  :1
  • RTECS  :TC7900000
  • Autoignition Temperature :845 °F
  • TSCA  :Yes
  • HS Code  :29190090
  • Hazardous Substances Data :78-40-0(Hazardous Substances Data)
  • Toxicity :LD50 orally in Rabbit: 1165 mg/kg
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements
  • H302:Harmful if swallowed
  • H319:Causes serious eye irritation
  • H336:May cause drowsiness or dizziness
  • H361:Suspected of damaging fertility or the unborn child
  • H371:May cause damage to organs
  • Precautionary statements
  • P201:Obtain special instructions before use.
  • P202:Do not handle until all safety precautions have been read and understood.
  • P260:Do not breathe dust/fume/gas/mist/vapours/spray.
  • P264:Wash hands thoroughly after handling.
  • P264:Wash skin thouroughly after handling.
  • P270:Do not eat, drink or smoke when using this product.
  • P271:Use only outdoors or in a well-ventilated area.
  • P280:Wear protective gloves/protective clothing/eye protection/face protection.
  • P330:Rinse mouth.
  • P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
  • P405:Store locked up.
  • P403+P233:Store in a well-ventilated place. Keep container tightly closed.
  • P501:Dispose of contents/container to..…
NFPA 704
Diamond
1
1
Value
Health
Hazard
Description
Value
Flammability
Hazard
1
Description
Materials that require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. Includes some finely divided suspended solids that do not require heating before ignition can occur. Flash point at or above 93.3 °C (200 °F). (e.g. mineral oil, ammonia)
Value
Instability
Hazard
1
Description
Normally stable, but can become unstable at elevated temperatures and pressures (e.g. propene)
Value
Special
Hazard
Description
Triethyl phosphate Price More Price(16)
  • Brand: Sigma-Aldrich
  • Product number: 538728
  • Product name : Triethyl phosphate
  • Purity: ReagentPlus , ≥99.8%
  • Packaging: 1l
  • Price: $88.3
  • Updated: 2018/11/13
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  • Brand: Sigma-Aldrich
  • Product number: 538728
  • Product name : Triethyl phosphate
  • Purity: ReagentPlus , ≥99.8%
  • Packaging: 4l
  • Price: $196
  • Updated: 2018/11/13
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  • Brand: TCI Chemical
  • Product number: P0270
  • Product name : Triethyl Phosphate
  • Purity: >99.0%(GC)
  • Packaging: 25g
  • Price: $12
  • Updated: 2018/11/22
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: P0270
  • Product name : Triethyl Phosphate
  • Purity: >99.0%(GC)
  • Packaging: 500g
  • Price: $35
  • Updated: 2018/11/22
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  • Brand: Alfa Aesar
  • Product number: A17938
  • Product name : Triethyl phosphate, 98+%
  • Purity: 
  • Packaging: 500g
  • Price: $38.2
  • Updated: 2018/11/13
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Triethyl phosphate Chemical Properties,Usage,Production

  • Chemical Properties Colorless, high-boiling liquid; 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.
  • Uses As ethylating agent; formation of polyesters which are used as insecticides.
  • Production Methods Prepared by the reaction of tetraethyl hypophosphate with ethanol in the presence of aluminum ethoxide or by treating triethyl phosphate with diethyl hydrogen phosphate.
  • Definition ChEBI: A trialkyl phosphate that is the triethy ester derivative of phosphoric acid.
  • General Description A colorless, corrosive liquid. Combustible. Slowly dissolves in water and sinks in water. Severely irritates skin, eyes and mucous membranes.
  • Air & Water Reactions Slowly dissolves in water with slight decomposition .
  • Reactivity Profile Organophosphates, such as Triethyl phosphate, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
  • Health Hazard May be harmful by inhalation, ingestion or absorption. May cause irritation.
  • Fire Hazard Special Hazards of Combustion Products: May produce hazardous decomposition products such as carbon dioxide, carbon monoxide and oxides of phosphorus.
  • Industrial uses 1 Plasticizer for cellulose acetate, resins, plastics, gums.
    2 Flame retardant additive in unsaturated polyester resins.
    3 Solvent; lacquer remover.
    4 Catalyst.
    5 Chemical intermediate; ethylating agent.
  • Safety Profile Moderately toxic by ingestion, intraperitoneal, and intravenous routes. Experimental reproductive effects. Mutation data reported. Causes cholinesterase inhibition, but to a lesser extent than parathion. May be expected to cause nerve injury similar to that of other phosphate esters. Combustible when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, use CO2, dry chemical, alcohol foam. When heated to decomposition it emits toxic fumes of POx. See also PARATHION.
  • Metabolism A system utilizing isolated anterior forearm stratum corneum conjunctum of man to study skin penetrating capacity of a series of organic phosphates was developed. Trimethyl phosphate was the most penetrating, followed by triethyl phosphate, in a series of 8 trialkyl esters (Marzulli et al 1965).
    Rats treated orally at 100 mg/kg and mice treated i.p. at 1000 mg/kg with [32P]-labeled triethyl phosphate excreted diethyl phosphate in the urine. No parent compound was detected in the urine of either species. S-Ethyl cysteine and S-ethyl cysteine N-acetate were also isolated. The compound was excreted very rapidly, with 90% of the administered dose in the urine in 16 h and nearly 100% within 96 h (Jones 1970).
  • Purification Methods Dry the ester by refluxing it with solid BaO and then fractionally distil it under reduced pressure. It is kept over Na and distilled. Store it in the receiver protected from light and moisture. Alternatively it 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. It has also been fractionated carefully under reduced pressure through a glass helices-packed column. It is soluble in EtOH, Et2O and H2O (dec). [Estok & Wendlandt J Am Chem Soc 77 4767 1955, Hoffmann et al. J Am Chem Soc 78 6413 1956, (P NMR) Muller et al. J Am Chem Soc 78 3557 1956, French et al. J Chem Soc 3582 1959, IR: Bellamy & Beecher J Chem Soc 475 1952 and McIvor Can J Chem 36 820 1958, Kosolapoff Organophosphorus Compounds, Wiley p 258 1950, Beilstein 1 IV 1339.]
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78-40-0, Triethyl phosphateRelated Search:
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  • 5578-40-0
  • C6H15O4P
  • CH3CH2O2PO
  • 78400
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