Ethion

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Ethion
Skeletal formula of ethion
Ball-and-stick model of the ethion molecule
Names
IUPAC name
O,O,O′,O′-Tetraethyl S,S′-methylene bis(phosphorodithioate)
Other names
Diethion;[(Dethoxyphosphinothioylthio)methylthio]-diethoxy-thioxophosphorane
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.008.403 Edit this at Wikidata
KEGG
UNII
  • InChI=1S/C9H22O4P2S4/c1-5-10-14(16,11-6-2)18-9-19-15(17,12-7-3)13-8-4/h5-9H2,1-4H3 checkY
    Key: RIZMRRKBZQXFOY-UHFFFAOYSA-N checkY
  • InChI=1/C9H22O4P2S4/c1-5-10-14(16,11-6-2)18-9-19-15(17,12-7-3)13-8-4/h5-9H2,1-4H3
    Key: RIZMRRKBZQXFOY-UHFFFAOYAJ
  • S=P(SCSP(=S)(OCC)OCC)(OCC)OCC
Properties
C9H22O4P2S4
Molar mass 384.48 g/mol
Appearance Colorless to amber-colored, odorless liquid
Density 1.22 g/cm3
Melting point −12.2 °C (10.0 °F; 260.9 K)
Boiling point 150 °C (302 °F; 423 K) (decomposes)
0.0001% (20°C)[1]
Vapor pressure 0.0000015 mmHg (20°C)[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Combustible[2]
Flash point 176.1 °C (349.0 °F; 449.2 K)
NIOSH (US health exposure limits):
PEL (Permissible)
 none[1]
REL (Recommended)
 TWA 0.4 mg/m3 [skin][1]
IDLH (Immediate danger)
 N.D.[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Ethion (C9H22O4P2S4) is an organophosphate insecticide. Ethion is known to affect a neural enzyme called acetylcholinesterase and prevent it from working.

Review

Ethion was one of many substances that were approved for use based on data from Industrial Bio-Test Laboratories, which prompted the Food and Agriculture Organization and World Health Organization to recommend its reanalysis in 1982.[3]

References

  1. ^ a b c d e NIOSH Pocket Guide to Chemical Hazards. "#0257". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ CDC - NIOSH Pocket Guide to Chemical Hazards
  3. ^ "Pesticide Residues in Food", Data and recommendations of the joint meeting of the FAO Panel of Experts on Pesticide Residues in Food and the Environment and the WHO Expert Group on Pesticide Residues, Rome: Food and Agriculture Organization of the United Nations, 2 December 1982, retrieved 2012-07-16

External links

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