Registration Dossier
Registration Dossier
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EC number: 210-323-0 | CAS number: 612-83-9
Endpoint summary
Administrative data
Description of key information
Additional information
Adsorption/Desoprtion:
3,3´-dichlorobenzidine (DCB) is readily adsorbed by aquatic sediments. Depending on the carbon content, sediment-water partition coefficients between 20 to 128 have been determined. With prolonged contact time, a transition from physical adsorption to covalent bonds by condensation reactions of amino groups of DCB with carbonyl groups of the organic carbon content of the sediment might be the reason for the ever reduced desoprtion observed with time.
Henry´s law constant:
H (3,3´-dichlororbenzidine) = Ps/Cs = 5*10(-5)Pa * m3* mol(-1)(at 20 -25 °C); therefore, volatility of DCB form aquatic solutions is expected to be low.
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