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Environmental fate & pathways

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Biodegradation in water :

Based on studies of target substance sodium 2-(2-dodecyloxyethoxy) ethyl sulphate reviewed for Biodegradation in water: screening tests from reliable sources having Klimisch rating 2.

The summary of the results are presented below

Sr.No

Endpoint

Half life

Parameter

Sources

1

ready biodegradability

50% degradation in 38 days

Test mat. analysis

Predicted data from PBT profiler

2

ready biodegradability

71.199% degradation

O2 consumption

Predicted data from QSAR

 

 

By applying weight of evidence approach the target chemical found to be readily biodegradable with 50% to 71.199 % percentage degradation.Thus it is concluded that sodium 2-(2-dodecyloxyethoxy) ethyl sulphate is readily biodegradable in water.

Biodegradation in water and sediment :

The half life period of sodium 2-(2-dodecyloxyethoxy)ethyl sulphate in water is 38 days and based on this value it can be concluded that the chemical is not persistent in water medium since the half life is less than the threshold of 40 days (to qualify the chemical as persistent). Also the diffusion percentage of sodium 2-(2-dodecyloxyethoxy)ethyl sulphate in water medium is 15 %. This coupled with the dilution of water shall result in ready biodegradabililty of the chemical.

Media

Half-Life (days)

Percent in
Each Medium

Water

38

  15%

Sediment

340

  2%

Biodegradation in soil :

Based on studies of target substance sodium 2-(2-dodecyloxyethoxy) ethyl sulphate reviewed for Biodegradation in water: screening tests from reliable sources having Klimisch rating 2.

 The summary of the results are presented below

 

of target substancesodium 2-(2-dodecyloxyethoxy) ethyl sulphatereviewed for Biodegradation in soil from reliable sources having Klimisch rating 2.

 

The summary of the results are presented below

 

 

Sr.No

Endpoint

Half life

Parameter

result

Sources

1

ready biodegradability

75 days

Test mat. analysis

Readily biodegradable

Predicted data from PBT profiler and EPI suite

2

ready biodegradability

68 days

-

Readily biodegradable

Predicted data from QSAR

 

By applying weight of evidence approach the target chemical found to be not persistent with half life 68 to 75 days which does not exceeds the threshold (120 days) of not being persistent in soil.Thus it is concluded that sodium 2-(2-dodecyloxyethoxy) ethyl sulphate is biodegradable in soil.

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