Difference between revisions of "1,5,9 cyclododecatriene"

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{{ Definition|title=1,5,9-Cyclododecatriene (CDDT)  
 
{{ Definition|title=1,5,9-Cyclododecatriene (CDDT)  
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|definition= 1,5,9-Cyclododecatriene is a liquid with a yellow tint and pungent odor. <ref name="epa">[www.epa.gov/hpv/pubs/summaries/cyclo/c13404rr.pdf EPA High Production Volume Challenge Program (HPV) 2003: Robust Summaries & Test Plans: C1,5,9-Cyclododecatriene] </ref>}}
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|definition= 1,5,9-Cyclododecatriene is a liquid with a yellow tint and pungent odour<ref name=p>[https://pubchem.ncbi.nlm.nih.gov/compound/trans_trans_cis-1_5_9-Cyclododecatriene pubchem C1,5,9-Cyclododecatriene] </ref>. }}
  
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CDDT is used in to produce [[cyclododecane]] which is used in the production of dodecanedioic acid.
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== Notes ==
  
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It has a high volatibility, therefore half of the concentration in a river can be evaporated in less than 1,3 hours. In the atmosphere it will be degraded rapidly (less than 30 minutes).  As a consequence CDDT will be found mostly in soils, and very little in water, air or sediment. It however is considered not to be biodegradable. It has a low tendency towards [[bioaccumulation]]. Concentrations above 0,2 mg/l cause acute toxicity to fish, algae and invertebrates. Doses of 2,5 g/kg body weight were lethal to rats.
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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" | 1,5,9 cyclododecatriene
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| align="center" bgcolor="#FFFFFF" | [[Image:CDDT.JPG|125px|CDDT]]  
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|-
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! bgcolor="#8888FF" | Formula
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| align="center" | C<sub>12</sub>H<sub>18</sub>
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|}
  
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Considering CDDT it is only used as an intermidiate in the production of other chemicals, its high votality and degrability, it has only a minor potential aquatic exposure and thus also only a minor risk to aquatic organisms.<ref name="epa">[www.epa.gov/hpv/pubs/summaries/cyclo/c13404rr.pdf EPA High Production Volume Challenge Program (HPV) 2003: Robust Summaries & Test Plans: C1,5,9-Cyclododecatriene] </ref>
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CDDT is used to produce [[cyclododecane]], which is used in the production of dodecanedioic acid. Dodecanedioic acid can be used in dyes, solvents, adhesives, cleaning agents fertilisers,... .
  
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<P>
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CDDT has a high [[volatile|volatility]], which causes it to have an aquatic [[half-life]] (by evaporation) of only 1,3 hours. In the atmosphere it will be degraded rapidly (in less than 30 minutes).  As a consequence CDDT will be found mostly in soils, and very little in water, air or sediment. It is not considered to be biodegradable and has a low tendency to [[bioaccumulation|bioaccumulate]].
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== Case studies ==
 
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[[PCB and heavy metals in beached sperm whales]]<P>
 
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[[Heavy metal content of mussels in the Western Scheldt estuary]]<P>
 
  
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[[Common starfish can act as a bioindicator for heavy metal pollution]]<P>
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Aquatic concentrations above 0,2 mg/l cause acute [[toxic|toxicity]] to fish, algae and invertebrates. A dose of 2,5 g/kg body weight is lethal to rats.
  
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[[Effects of heavy metals on the sperm quality and the larvae survival of sea urchins]]<P>
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Considering CDDT it is only used as an intermediate in the production of other chemicals, its high volatility and degradability, it has only a minor potential aquatic exposure and thus poses only a minor risk to aquatic organisms<ref name=p/>.
  
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[[Heavy metals in various Belgian benthic invertebrates]]
 
 
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<P>
 
<BR>
 
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== Environmental standards and legislation ==
 
== Environmental standards and legislation ==
  
 
[[OSPAR List of priority substances|Included in the OSPAR list of substances of priority action]]  
 
[[OSPAR List of priority substances|Included in the OSPAR list of substances of priority action]]  
  
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<BR>
 
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== See also ==
 
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[http://www.vliz.be/projects/endis/EDnorth.php?showchemprop=true&showeffects=true&chemeffects=true&chemid=323 Cadmium on the ED North Database]
 
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[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00151_Background%20document%20on%20Cadmium.pdf OSPAR background document on cadmium]
 
  
  
 
==References==
 
==References==
 
<references/>
 
<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]]
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[[Category:Coastal and marine pollution]]
 

Latest revision as of 12:57, 9 August 2020

Definition of 1,5,9-Cyclododecatriene (CDDT):
1,5,9-Cyclododecatriene is a liquid with a yellow tint and pungent odour[1].
This is the common definition for 1,5,9-Cyclododecatriene (CDDT), other definitions can be discussed in the article

Notes

1,5,9 cyclododecatriene
CDDT
Formula
C12H18

CDDT is used to produce cyclododecane, which is used in the production of dodecanedioic acid. Dodecanedioic acid can be used in dyes, solvents, adhesives, cleaning agents fertilisers,... .

CDDT has a high volatility, which causes it to have an aquatic half-life (by evaporation) of only 1,3 hours. In the atmosphere it will be degraded rapidly (in less than 30 minutes). As a consequence CDDT will be found mostly in soils, and very little in water, air or sediment. It is not considered to be biodegradable and has a low tendency to bioaccumulate.

Aquatic concentrations above 0,2 mg/l cause acute toxicity to fish, algae and invertebrates. A dose of 2,5 g/kg body weight is lethal to rats.

Considering CDDT it is only used as an intermediate in the production of other chemicals, its high volatility and degradability, it has only a minor potential aquatic exposure and thus poses only a minor risk to aquatic organisms[1].


Environmental standards and legislation

Included in the OSPAR list of substances of priority action


References

  1. ↑ 1.0 1.1 pubchem C1,5,9-Cyclododecatriene
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): 1,5,9 cyclododecatriene. Available from http://www.coastalwiki.org/wiki/1,5,9_cyclododecatriene [accessed on 21-11-2024]
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