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Environmental fate & pathways

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Description of key information

Adsorption / desorption:

The Soil Adsorption Coefficient i.e Koc value of 2-Nonanone was estimated using EPI suite  KOCWIN Program (v2.00) as Koc 90.66 L/kg (log Koc = 1.957)  by means of MCI method at 25 deg.C. This Koc value indicates that the substance 2-Nonanone has a Low sorption to soil and sediment and therefore have moderate migration potential to groundwater.

Additional information

Adsorption / desorption:

Three different studies from validated predicted databases for adsorption endpoint of target chemical 2-Nonanone (Cas no. 821-55-6) are summarized as followed:

 

First study from prediction report using EPI suite KOCWIN Program (v2.00) indicate The Soil Adsorption Coefficient i.e Koc value of 2-Nonanone was estimated as Koc 90.66 L/kg (log Koc = 1.957) by means of MCI method at 25 deg.C. This Koc value indicates that the substance 2-Nonanone has a Low sorption to soil and sediment and therefore has moderate migration potential to groundwater.

And Chemspider - ACD/PhysChem Suite prediction model indicate the the soil adsorption coefficient i.e Koc value of test substance 2-Nonanone was estimated to be 1462.41(log koc-3.16) at pH 5.5 and pH 7.4 and temp.25 deg.C Koc values at different pH indicates that the substance 2-Nonanone has moderate sorption to soil and sediment and therefore have slow migration potential to groundwater.

Whereas Scifinder database indicate the soil adsorption coefficient i.e Koc value of test substance 2-Nonanone was estimated to be 1040 (Log koc-3.01) at pH 1-10 and temperature 25 deg.C. This Koc value at all range of pH condition indicates that the substance 2-Nonanone has moderate sorption to soil and sediment and therefore have slow migration potential to groundwater.

All predicted values for adsorption is in the range of log Koc 1.957-3.16 (L/kg or dimensionless) conclude the target chemical 2-Nonanone (Cas no. 821-55-6) has moderate mobility in soil/sediment.

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