Registration Dossier
Registration Dossier
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EC number: 209-608-2 | CAS number: 587-98-4
Endpoint summary
Administrative data
Description of key information
Adsorption/desorption
The Adsorption Coefficient of test substance Sodium 3-(p-anilinophenylazo)benzenesulphonate (CAS No. 587-98-4) was determined as per the HPLC method (OECD Guideline-121). The Log Koc value was found to be 1.697 ± 0.002 at 25°C.
Additional information
Adsorption/desorption
The adsorption coefficient Koc in soil and in sewage sludge Sodium 3-(panilinophenylazo) benzenesulphonate(CAS No.587-98-4) was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 121 for testing of Chemicals. The reference substances were chosen according to functional similarity with the test substance and calibration graph prepared. The reference substances were N-methylaniline, 2 - nitrophenol, Nitrobenzene, 4 -Nitrobenzamide, N,N-dimethylbenzamide, N-methylbenzamide, Benzamide having Koc value ranging from 1.239 to 2.47 The Log Koc value was found to be 1.697 ± 0.002 (Koc= 48.977) at 25°C.
This value indicates that the substance has low sorption to soil and sediment, moderate migration to ground water.
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