Registration Dossier
Registration Dossier
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reaction mass of: 7-amino-3,8-bis-[4-(2-sulfoxyethylsulfonyl)phenylazo]-4- hydroxynaphthalene-2-sulfonic acid, Na/K salt; 7-amino-3-[4-(2-sulfoxyethylsulfonyl)phenylazo]-4-hydroxy-8-[4-(2-sulfoxyethylsulfonyl)-2- sulfophenylazo]naphthalene-2-sulfonic acid, Na/K salt; 7-amino-8-[4-(2-sulfoxyethylsulfonyl)-phenylazo]-4-hydroxy-3-[4-(2-sulfoxyethylsulfonyl)- 2-sulfophenylazo]naphthalene-2-sulfonic acid, Na/K salt; 7-amino-3,8-bis-[4-(2-sulfoxyethylsulfonyl)-2-sulfophenylazo]-4-hydroxynaphthalene-2- sulfonic acid, Na/K salt
EC number: 429-070-4 | CAS number: 214362-06-8 SCARLET DER 8107
Endpoint summary
Administrative data
Description of key information
Reactive Brown 49 can therefore be regarded as little mobile in all three soils.
Additional information
The screening test for adsorption / desorption revealed a moderate adsorption of the Reactive Brown 49 on soil. At a concentration of 4.806 mg/l and soil samples of 5 g, the amount of test substance adsorbed was 75.3% for soil Speyer, 58.0% for soil Sisseln and 76.2% for soil Les Barges. From the quantity adsorbed less than 22.5%, 31.6% and 16.8% could be respectively desorbed.
The adsorption coefficient was 15.24 ml/g, 6.81 ml/g and 15.97 ml/g calculated for soils Speyer, Sisseln and Les Barges, and the corresponding Koc values were 666 ml/g, 433 ml/g and 420 ml/g, respectively (506 ml/g on average).
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