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Adsorption / desorption

KOCWIN model of Estimation Programs Interface (2018) was used to predict the soil adsorption coefficient i.e Koc value of test chemical 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates (CAS No. 84281 -74 -3). The soil adsorption coefficient i.e Koc value of 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates was estimated to be 331000 L/kg (log Koc=5.5198) by means of MCI method (at 25 deg C). This Koc value indicates that the substance 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates has a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.

Additional information

Adsorption / desorption

Various predicted data for the target compound 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates (CAS No. 84281-74-3) and supporting weight of evidence study for its structurally and functionally similar read across substance were reviewed for the adsorption end point which are summarized as below:

 

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 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates (CAS No. 84281 -74 -3). The soil adsorption coefficient i.e Koc value of 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates was estimated to be 331000 L/kg (log Koc=5.5198) by means of MCI method (at 25 deg C).

 

In a supporting weight of evidence study from authoritative databases (HSDB, 2017) for the test item,adsorption experiment was conducted for estimating the adsorption coefficient (Koc) value of test chemical. The adsorption coefficient (Koc) value was calculated using a structure estimation method based on molecular connectivity indices. The adsorption coefficient (Koc) value of test substance was estimated to be 66000 (Log Koc = 4.819).

 

For the test chemical,adsorption study was conducted for estimating the adsorption coefficient (Koc) value of test chemical (HSDB, 2017). The adsorption coefficient (Koc) value was calculated using a logKow of 7.5 and a regression derived equation. The adsorption coefficient (Koc) value of test substance was estimated to be 290000 (Log Koc = 5.462).

 

On the basis of above overall results for target chemical 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates (from modelling databases,2017), it can be concluded that the Koc value of test substance 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates was estimated to be 331000 L/kg (log Koc=5.5198), respectively, indicating that the test chemical 1,3-Benzenediamine, coupled with diazotized m-phenylenediamine, acetates has a very strong sorption to soil and sediment and therefore have negligible migration potential to ground water.

 

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