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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Adsorption / desorption

Adsorption study was conducted for estimating the adsorption coefficient (Koc) value of test chemical (from handbook, 2008 and secondary source, 2011). The adsorption coefficient (Koc) value of test chemical was estimated to be 1995262.3 dimensionless (Log Koc = 6.3) at 25°C. This Koc value indicates that the test chemical hasa very strong sorption tosoil and sediment and therefore have negligible migration potential to ground water.

Additional information

Adsorption / desorption

Various predicted data of the test chemical were reviewed for the adsorption end point which are summarized as below:

 

Adsorption study was conducted for estimating the adsorption coefficient (Koc) value of test chemical (from handbook, 2008 and secondary source, 2011). The adsorption coefficient (Koc) value of test chemical was estimated to be 1995262.3 dimensionless (Log Koc = 6.3) at 25°C. This Koc value indicates that the test chemical has a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.

 

In aprediction done using theKOCWIN Programof Estimation Programs Interface (2018) was used to predict the soil adsorption coefficient i.e Koc value of test chemical. The soil adsorption coefficient i.e Koc value of test chemical was estimated to be 338300 L/kg (log Koc= 5.529) by means of MCI method (at 25 deg C). This Koc value indicates that the test chemical has a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.

 

The Soil Adsorption Coefficient i.e Koc value of test chemical was estimated using Adsorption Coefficient module program as Koc 4999, 36135, 190677, 340864, 370104, 373307, 373630, 373663 and 373666 at pH range 0, 1, 2, 3, 4, 5, 6, 7 and 8-14, respectively (logKoc value ranges from 3.7 ± 1.0 to 5.6 ± 1.0) (ACD (Advanced Chemistry Development)/I-Lab predictive module, 2017)). The logKoc value (at pH 7.0) indicates that the test chemical has a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.

 

On the basis of above overall results for test chemical, it can be concluded that the log Koc value (at pH 7.0) of test chemical was estimated to be ranges from 5.529 to 6.3, respectively, indicating that the test chemicalhas a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.