Registration Dossier
Registration Dossier
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Reaction mass of tetrasodium 5-{[4-chloro-6-(4-{[2-(sulfonatooxy)ethyl]sulfonyl}anilino)-1,3,5-triazin-2-yl]amino}-4-hydroxy-3-[(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl) diazenyl]naphthalene-2,7-disulfonate and trisodium 5-({4-chloro-6-[4-(vinylsulfonyl) anilino]-1,3,5-triazin-2-yl}amino)-4-hydroxy-3-[(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)diazenyl]naphthalene-2,7-disulfonate
EC number: 701-360-8 | CAS number: -
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The test substance does not tend to adsorb to sludge or soil
Key value for chemical safety assessment
- Koc at 20 °C:
- 17.8
Additional information
The adsorption coefficient of the test item was determined in a GLP compliant study, performed according to the OECD Guideline for the Testing of Chemicals, No. 121, Estimation of the Adsorption Coefficient (Koc) on Soil and Sewage Sludge using High Performance Liquid Chromatography (HPLC), Adopted Test Guideline (January 2001) and the EC Directive 2001159/EC, C. 19, EC publication L 225, August 2001.
The experimentally determined log KOC is below 1.25 at pH 6.5 and therefore outside the range (1.5 to 5.0) for which the method is published in the guideline. The log KOC was therefore only determined with four reference substances and no further tests were performed.
The log Koc is below 1.25 at pH 6.5 for the test substance. It will not be adsorbed by organic carbon in soil and thus can be classified to be of very high mobility.
The adsorption coefficient of the test item was found to be: log KOC < 1.25
[LogKoc: 1.25]
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