Tetraethyl pyrophosphate
Names | |
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IUPAC name
tetraethyl diphosphate | |
Identifiers | |
107-49-3 | |
ChEMBL | ChEMBL293787 |
ChemSpider | 7585 |
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Jmol-3D images | Image |
PubChem | 7873 |
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Properties | |
Molecular formula |
C8H20O7P2 |
Molar mass | 290.19 g·mol−1 |
Hazards | |
US health exposure limits (NIOSH): | |
PEL (Permissible) |
TWA 0.05 mg/m3 [skin][1] |
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
verify (what is: / ?) | |
Infobox references | |
Tetraethyl pyrophosphate, abbreviated TEPP, is an organophosphate compound. It is used as a pesticide.
This compound is a clear, colorless liquid. It is soluble in water, but hydrolyzes rapidly.[2] It was first synthesized by Philippe de Clermont. This compound may be prepared by two equivalents of diethyl chlorophosphate with one equivalent of water in the presence of pyridine to scavenge the hydrogen chloride formed:[3]
References
- ↑ "NIOSH Pocket Guide to Chemical Hazards #0590". National Institute for Occupational Safety and Health (NIOSH).
- ↑ Robert L. Metcalf (2005), "Insect Control", Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, doi:10.1002/14356007.a14_263
- ↑ Toy, A. D. F. (1948). "The Preparation of Tetraethyl Pyrophosphate and Other Tetraalkyl Pyrophosphates". J. Am. Chem. Soc. 70 (11): 3882. doi:10.1021/ja01191a104.