VLAAMS INSTITUUT VOOR DE ZEE
PLATFORM VOOR MARIEN ONDERZOEK


Persoonlijke instellingen
Naamruimten

Varianten
Handelingen


2,4,6-tri-tert-butylphenol: verschil tussen versies

Uit Kust Wiki
Ga naar: navigatie, zoeken
(10 tussenliggende versies door één gebruiker worden niet weergegeven)
Regel 2: Regel 2:
 
{{Definition|title=2,4,6-tri-''tert''-butylphenol
 
{{Definition|title=2,4,6-tri-''tert''-butylphenol
  
|definition=2,4,6-tri-tert-butylphenol is a toxic, persistent and [[bioaccumulation|bioaccumulative]] chemical. It has been confused with an other chemical called dodecylphenol.
+
|definition=2,4,6-tri-''tert''-butylphenol is a chemical which has been confused with an other chemical called dodecylphenol which has the same molecular formula but a different structure<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00274_BD%202_4_6_tri_tert-butylphenol%20_2006%20version_.pdf  OSPAR Commission, 2006: OSPAR background document on 2,4,6-tri-''tert''-butylphenol]</ref>. }}
<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00274_BD%202_4_6_tri_tert-butylphenol%20_2006%20version_.pdf  OSPAR Commission, 2006: OSPAR background document on 2,4,6-tri-tert-butylphenol]</ref>
+
}}
+
  
 
== Notes ==
 
== Notes ==
  
Less than 50 tonnes of 2,4,6-tri-tert-butylphenol is used in the EU each year. It can be used as an intermediate in the production of antioxidants which are used in rubber or plastic and as an lubricating agent in the transport sector. As an intermediate it shouldn't enter the environment unless by discharged.  
+
{| class="toccolours" border="1" style="float: right; clear: right; margin: 0 0 1em 1em; border-collapse: collapse;"
 +
! bgcolor="#FF8888" | 2,4,6-tri-''tert''-butylphenol
 +
|-
 +
| align="center" bgcolor="#FFFFFF" | [[Image:butylphenol.jpg|100px|6PPD]]
 +
|-
 +
! bgcolor="#8888FF" | Formula
 +
|-
 +
| align="center" | C<sub>18</sub>H<sub>30</sub>0
 +
|-
 +
|}
  
It is a chemical with a low volatility, making it unlike to enter the atmosphere, where it would be rapidly degraded.  
+
Less than 50 tonnes of 2,4,6-tri-''tert''-butylphenol are used in the EU each year. It can be used as an intermediate in the production of antioxidants, in rubber or plastic and as an lubricating agent in the transport sector. As an intermediate it shouldn't enter the environment unless by discharges<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00274_BD%202_4_6_tri_tert-butylphenol%20_2006%20version_.pdf  OSPAR Commission, 2006: OSPAR background document on 2,4,6-tri-''tert''-butylphenol]</ref>.
It has a low water solubility (0,521 mg/l) and a strong tendency to adsorb to soils and sediments, in both mediums it isn't readily (bio)degraded and considered persistent.   
+
 
It has a high tendency to bioaccumulate and is likely to [[biomagnification|biomagnify]]
+
It is a chemical with a low [[volatile|volatility]], making it unlikely that it enters the atmosphere, where it would be degraded rapidly. It has a low water solubility (0,521 mg/l) and a strong tendency to [[adsorption|adsorb]] to soils and sediments. Both in water and sediments, it isn't readily (bio)degraded and considered [[persistent]].   
In fresh water is has been shown to be toxic for fish and for algae at concentrations above 0,061 mg/l and 0,033 mg/l respectively.  
+
It has a high tendency to [[bioaccumulation|bioaccumulate]] and is likely to [[biomagnification|biomagnify]] through [[food chain|food chains]].
There is currently no information available the levels of 2,4,6-tri-tert-butylphenol in the marine environment. It is however estimated (based on modeling the emissions) that concentrations might be as high as 0,32 µg/l.
+
 
 +
In fresh water is has been shown to be acutely [[toxic]] for fish and for algae at concentrations above 0,061 mg/l and 0,033 mg/l respectively.  
 +
There is currently little information available on the levels of 2,4,6-tri-''tert''-butylphenol in the marine environment. It has been estimated (by modelling the emissions) that concentrations might reach 0,32 µg/l<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00274_BD%202_4_6_tri_tert-butylphenol%20_2006%20version_.pdf  OSPAR Commission, 2006: OSPAR background document on 2,4,6-tri-''tert''-butylphenol]</ref>.
 
<P>
 
<P>
 
<BR>
 
<BR>
Regel 32: Regel 41:
 
<BR>
 
<BR>
 
<P>
 
<P>
 +
 
==References==
 
==References==
 
<references/>
 
<references/>
  
 
[[Category:Coastal and marine pollution]]
 
[[Category:Coastal and marine pollution]]

Versie van 2 okt 2009 om 12:51

Definition of 2,4,6-tri-tert-butylphenol:
2,4,6-tri-tert-butylphenol is a chemical which has been confused with an other chemical called dodecylphenol which has the same molecular formula but a different structure[1].
This is the common definition for 2,4,6-tri-tert-butylphenol, other definitions can be discussed in the article

Notes

2,4,6-tri-tert-butylphenol
6PPD
Formula
C18H300

Less than 50 tonnes of 2,4,6-tri-tert-butylphenol are used in the EU each year. It can be used as an intermediate in the production of antioxidants, in rubber or plastic and as an lubricating agent in the transport sector. As an intermediate it shouldn't enter the environment unless by discharges[1].

It is a chemical with a low volatility, making it unlikely that it enters the atmosphere, where it would be degraded rapidly. It has a low water solubility (0,521 mg/l) and a strong tendency to adsorb to soils and sediments. Both in water and sediments, it isn't readily (bio)degraded and considered persistent. It has a high tendency to bioaccumulate and is likely to biomagnify through food chains.

In fresh water is has been shown to be acutely toxic for fish and for algae at concentrations above 0,061 mg/l and 0,033 mg/l respectively. There is currently little information available on the levels of 2,4,6-tri-tert-butylphenol in the marine environment. It has been estimated (by modelling the emissions) that concentrations might reach 0,32 µg/l[1].


Environmental standards and legislation

Included in the OSPAR list of substances of priority action


See also

OSPAR background document on 2,4,6-tri-tert-butylphenol


References

  1. 1,0 1,1 1,2 OSPAR Commission, 2006: OSPAR background document on 2,4,6-tri-tert-butylphenol