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Environmental fate & pathways

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Administrative data

Description of key information

Adsorption / desorption:

KOCWIN model (v2.00) of Estimation Programs Interface (EPI Suite, 2017) was used to predict the soil adsorption coefficient i.e Koc value of test chemical 4-amino-N-(4-aminophenyl) benzenesulphonamide (CAS No. 16803 -97 -7). The soil adsorption coefficient i.e Koc value of 4-amino-N-(4-aminophenyl)benzenesulphonamide was estimated to be 14.25 L/kg (log Koc= 1.15) by means of MCI method (at 25 deg C). This Koc value indicates that the substance 4-amino-N-(4-aminophenyl)benzenesulphonamide has a negligible sorption to soil and sediment and therefore have rapid migration potential to ground water.

Additional information

Adsorption / desorption

Predicted data for the target key compound 4-amino-N-(4-aminophenyl) benzenesulphonamide (CAS No. 16803 -97 -7) and supporting, study were reviewed for the adsorption end point which are summarized as below:

 

KOCWIN model (v2.00) of Estimation Programs Interface (EPI Suite, 2017) was used to predict the soil adsorption coefficient i.e Koc value of test chemical 4-amino-N-(4-aminophenyl) benzenesulphonamide (CAS No. 16803 -97 -7). The soil adsorption coefficient i.e Koc value of 4-amino-N-(4-aminophenyl)benzenesulphonamide was estimated to be 14.25 L/kg (log Koc= 1.15) by means of MCI method (at 25 deg C). This Koc value indicates that the substance 4-amino-N-(4-aminophenyl)benzenesulphonamide has a negligible sorption to soil and sediment and therefore have rapid migration potential to ground water.

 

Similarly using module (ACD (Advanced Chemistry Development)/I-Lab predictive module). The Soil Adsorption Coefficient i.e Koc value of test substance 4-amino-N-(4-aminophenyl)benzenesulphonamide was estimated using Adsorption Coefficient module (v12.1.0.50374) program as Koc 1 (at pH ranges from 0-4and 12-14). Koc 20.2, 26.0, 26.8, 26.7, 25.5, 17.4, 4.34,  (log Koc ranges from 0.6 ± 1.0 to 1.4 ± 1.0. This Koc value indicates that the test substance 4-amino-N-(4-aminophenyl)benzenesulphonamide has a negligible sorption to soil and therefore have rapid migration potential to groundwater.

 

On the basis of above overall results for target chemical 4-amino-N-(4-aminophenyl) benzenesulphonamide (CAS No. 16803 -97 -7) (from EPI suite, 2017, ACD lab) it can be concluded that the Koc value of test substance 4-amino-N-(4-aminophenyl) benzenesulphonamide has a negligible sorption to soil and therefore have rapid migration potential to groundwater.