Difference between revisions of "Ethyl O-(p-nitrophenyl) phenyl phosphonothionate"

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ethyl O-(p-nitrophenyl) phenyl phosphonothionate (ENP)
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{{Definition|title=ethyl O-(p-nitrophenyl) phenyl phosphonothionate (EPN)
  
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Ethyl O-(p-nitrophenyl) phenyl phosphonothionate belongs to the group of organophosforous [[pesticides]]. At room temperature it appears as a yellow-brown powder.
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|definition=Ethyl O-(p-nitrophenyl) phenyl phosphonothionate is an organic compound with a phosphorous group. It is used as a [[pesticide]]. At room temperature it appears as a yellow powder, but at temperatures above 35 °C it becomes a brown liquid.}}
  
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== Notes ==
  
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{| class="toccolours" border="1" style="float: right; clear: right; margin: 0 0 1em 1em; border-collapse: collapse;"
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! bgcolor="#FF8888" | EPN
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|-
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| align="center" bgcolor="#FFFFFF" | [[Image:EPN.JPG|100px|EPN]]
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|-
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! bgcolor="#8888FF" | Formula
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| align="center" | C<sub>14</sub>H<sub>14</sub>NO<sub>4</sub>PS
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|-
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|}
  
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Ethyl O-(p-nitrophenyl) phenyl phosphonothionate has been used as an insecticide on a variety of plants against a wide range of insects.
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EPN is expected to be released released to the environment primarily during aerial and ground spraying of various agricultural crops. In water or the soil it is expected to be degraded rapidly (in less than a month) by hydrolysis and oxidation. Due to it's low water solubility it is expected to be relative immobile in the soils where it's sprayed upon. In water it is also mostly [[adsorption|adsorbed]] to suspended particles and sediments. It has a low [[volatile|volatility]], causing only small amounts to evaporate to the atmosphere where they are degraded rapidly<ref>[http://www.speclab.com/compound/c2104645.htm www.speclab.com August 12 2009]</ref>.
  
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It is a highly toxic compound for crustatians, as concentrations above 0,5 µg/l can already be lethal. Fish are less vulnerable as below 20 µg/l are tolerated, and some fish species can even survive in concentrations above 1 mg/l.
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EPN has some tendency to [[bioaccumulation|bioaccumulate]], but only when biota are continuously exposed, since EPN can be excreted rapidly<ref>[http://www.find-health-articles.com/rec_pub_9297785-acute-toxicity-accumulation-excretion-organophosphorous-insecticides.htm Tsuda T, Kojima M, Harada H, Nakajima A, Aoki S; 1997 Acute toxicity, accumulation and excretion of organophosphorous insecticides and their oxidation products in killifish. Chemosphere. 35(5):939-49] </ref>.
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[http://www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC35087]
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It is a highly [[toxic]] compound for crustaceans; ENP concentrations above 0,5 µg/l can be lethal. [[Pollution and pelagic fishes|Fish]] are less vulnerable as concentrations up to 20 µg/l are tolerated, and some fish [[species]] can even survive short exposure to ENP concentrations above 1 mg/l<ref>[http://www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC35087 www.pesticideinfo.org August 12 2009]</ref>.
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== Environmental standards and legislation ==
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[[OSPAR List of priority substances|Included in the OSPAR list of substances of priority action]]
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<BR>
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==References==
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<references/>
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{{author
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|AuthorID=19826
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|AuthorFullName=Daphnis De Pooter
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|AuthorName=Daphnisd}}
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[[Category:Toxicity chemicals]]

Latest revision as of 13:14, 9 August 2020

Definition of ethyl O-(p-nitrophenyl) phenyl phosphonothionate (EPN):
Ethyl O-(p-nitrophenyl) phenyl phosphonothionate is an organic compound with a phosphorous group. It is used as a pesticide. At room temperature it appears as a yellow powder, but at temperatures above 35 °C it becomes a brown liquid.
This is the common definition for ethyl O-(p-nitrophenyl) phenyl phosphonothionate (EPN), other definitions can be discussed in the article

Notes

EPN
EPN
Formula
C14H14NO4PS

Ethyl O-(p-nitrophenyl) phenyl phosphonothionate has been used as an insecticide on a variety of plants against a wide range of insects. EPN is expected to be released released to the environment primarily during aerial and ground spraying of various agricultural crops. In water or the soil it is expected to be degraded rapidly (in less than a month) by hydrolysis and oxidation. Due to it's low water solubility it is expected to be relative immobile in the soils where it's sprayed upon. In water it is also mostly adsorbed to suspended particles and sediments. It has a low volatility, causing only small amounts to evaporate to the atmosphere where they are degraded rapidly[1].

EPN has some tendency to bioaccumulate, but only when biota are continuously exposed, since EPN can be excreted rapidly[2].

It is a highly toxic compound for crustaceans; ENP concentrations above 0,5 µg/l can be lethal. Fish are less vulnerable as concentrations up to 20 µg/l are tolerated, and some fish species can even survive short exposure to ENP concentrations above 1 mg/l[3].


Environmental standards and legislation

Included in the OSPAR list of substances of priority action


References

  1. ↑ www.speclab.com August 12 2009
  2. ↑ Tsuda T, Kojima M, Harada H, Nakajima A, Aoki S; 1997 Acute toxicity, accumulation and excretion of organophosphorous insecticides and their oxidation products in killifish. Chemosphere. 35(5):939-49
  3. ↑ www.pesticideinfo.org August 12 2009
The main author of this article is Daphnis De Pooter
Please note that others may also have edited the contents of this article.
Citation: Daphnis De Pooter (2020): Ethyl O-(p-nitrophenyl) phenyl phosphonothionate. Available from http://www.coastalwiki.org/wiki/Ethyl_O-(p-nitrophenyl)_phenyl_phosphonothionate [accessed on 23-11-2024]
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