Difference between revisions of "Cyclododecane"
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There are 2 main uses for cyclododecane. It can be used as an intermediate, e. g. for the production of [[flame retardant|flame retardants]], cleaning and washing agents and other chemicals. It can also be used as a binding medium for temporarily sealing, consolidation and conservation of weak or friable materials in the field of excavation and transport of archaeological objects<ref name="eca">[http://echa.europa.eu/doc/about/organisation/msc/agreements_svhc/svhc_supdoc_cyclododecane.pdf European Chemicals Agency 8 October 2008 Support document for agreement on cyclododecane] </ref>. | There are 2 main uses for cyclododecane. It can be used as an intermediate, e. g. for the production of [[flame retardant|flame retardants]], cleaning and washing agents and other chemicals. It can also be used as a binding medium for temporarily sealing, consolidation and conservation of weak or friable materials in the field of excavation and transport of archaeological objects<ref name="eca">[http://echa.europa.eu/doc/about/organisation/msc/agreements_svhc/svhc_supdoc_cyclododecane.pdf European Chemicals Agency 8 October 2008 Support document for agreement on cyclododecane] </ref>. | ||
| − | It is very [[persistent]] in the environment. It's not hydrolysed [[abiotic|abiotically]] and also not easily biodegraded. Considering that it is highly lipofylic, cyclododecane | + | It is very [[persistent]] in the environment. It's not hydrolysed [[abiotic|abiotically]] and also not easily biodegraded. Considering that it is highly lipofylic, cyclododecane is considered to be mostly [[adsorption|adsorbed]] to suspended particles and soils. It is also very [[volatile]], causing the dissolved cyclododecane to evaporate rapidly to the atmosphere. Without adsorption, the [[half-life]] of cyclododecane in a small pond (by evaporation) would be less than 4 hours. Due to this adsorption the real half-live is 48 days. If released to the atmosphere, cyclododecane will be abiotically degraded. |
Cyclododecane has a very high potential to [[bioaccumulation|bioaccumulate]], although there is no information available on its ability to [[biomagnification|biomagnify]] through [[food chain|food chains]]. | Cyclododecane has a very high potential to [[bioaccumulation|bioaccumulate]], although there is no information available on its ability to [[biomagnification|biomagnify]] through [[food chain|food chains]]. | ||
| − | Concentrations above 1 mg/l cause acute toxicity in [[pollution and pelagic fishes|fishes]], concentrations above 2 mg/l acute toxicity in aquatic invertebrates | + | Concentrations above 1 mg/l cause acute [[toxic|toxicity]] in [[pollution and pelagic fishes|fishes]], concentrations above 2 mg/l acute toxicity in aquatic invertebrates<ref name="eca">[http://echa.europa.eu/doc/about/organisation/msc/agreements_svhc/svhc_supdoc_cyclododecane.pdf European Chemicals Agency 8 October 2008 Support document for agreement on cyclododecane] </ref>. |
| − | <ref name="eca">[http://echa.europa.eu/doc/about/organisation/msc/agreements_svhc/svhc_supdoc_cyclododecane.pdf European Chemicals Agency 8 October 2008 Support document for agreement on cyclododecane] </ref> | ||
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Revision as of 14:28, 2 October 2009
Definition of cyclododecane:
Cyclododecane is a saturated, alicyclical hydrocarbon[1].
This is the common definition for cyclododecane, other definitions can be discussed in the article
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Notes
| Cyclododecane |
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| Formula |
| C12H24 |
There are 2 main uses for cyclododecane. It can be used as an intermediate, e. g. for the production of flame retardants, cleaning and washing agents and other chemicals. It can also be used as a binding medium for temporarily sealing, consolidation and conservation of weak or friable materials in the field of excavation and transport of archaeological objects[2].
It is very persistent in the environment. It's not hydrolysed abiotically and also not easily biodegraded. Considering that it is highly lipofylic, cyclododecane is considered to be mostly adsorbed to suspended particles and soils. It is also very volatile, causing the dissolved cyclododecane to evaporate rapidly to the atmosphere. Without adsorption, the half-life of cyclododecane in a small pond (by evaporation) would be less than 4 hours. Due to this adsorption the real half-live is 48 days. If released to the atmosphere, cyclododecane will be abiotically degraded.
Cyclododecane has a very high potential to bioaccumulate, although there is no information available on its ability to biomagnify through food chains. Concentrations above 1 mg/l cause acute toxicity in fishes, concentrations above 2 mg/l acute toxicity in aquatic invertebrates[2].
Environmental standards and legislation
Included in the OSPAR list of substances of priority action
