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EC number: 300-523-7
CAS number: 93941-74-3
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 2 -[[4 -[[4 -[[6
-anilino-1 -hydroxy-3 -sulpho-2 -naphthyl]azo]-1 -naphthyl]azo]-6
-sulpho-1 -naphthyl]azo]benzene-1,4 -disulphonic acid, magnesium sodium
salt (CAS No. 93941 -74 -3). The soil adsorption coefficient i.e Koc
acid, magnesium sodium salt was estimated to be 3330000000 L/kg (log
Koc=9.522) by means of MCI method (at 25 deg C). This Koc value
indicates that the substance 2 -[[4 -[[4 -[[6 -anilino-1 -hydroxy-3
-sulpho-2 -naphthyl]azo]-1 -naphthyl]azo]-6 - sulpho-1
-naphthyl]azo]benzene-1,4 -disulphonic acid, magnesium sodium salt has a
very strong sorption to soil and sediment and therefore have negligible
migration potential to ground water.
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