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Triethyl phosphateCAS NO.: 78-40-0 CAS NO.78-40-0
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- Product Details
Keywords
- Triethyl phosphate
- TEP
- 99.5% Triethyl phosphate
Quick Details
- ProName: Triethyl phosphateCAS NO.: 78-40-0
- CasNo: 78-40-0
- Molecular Formula: C6H15O4P
- Appearance: colourless liquid
- Application: Catalyst and Auxiliary
- DeliveryTime: In stock
- PackAge: Aluminium Foil Bag and Paper Drum
- Port: China main port
- ProductionCapacity: 10000 Gram/Day
- Purity: 99%
- Storage: Room temperature
- Transportation: By sea or by air
- LimitNum: 1 Kilogram
- Grade: Industrial Grade,Food Grade,Pharma Gra...
- first class: 1-10
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1.Noble Metal Catalysts (Pt.Pd...)
2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...)
3.OLED intermediates (Fluorene,Carbazole,Boric acid...)
4.Customs Synthesis
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Details
| 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.] |