Registration Dossier
Registration Dossier
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EC number: 279-242-6 | CAS number: 79720-19-7
Endpoint summary
Administrative data
Description of key information
The only data available on transport and distribution are screening type data on adsorption-desoprtion (OECD 121; HPLC method).
Accordingly, log Koc is larger than 5.63.
Additional information
Adsorption-desorption properties were determined in a HPLC-screening test (OECD 121, RL1) performed compliant with GLP: retention time was considerably higher than that of the standard with the highest log Koc ( 4,4'-DDT; log Koc = 5.63). As a conclusion, log Koc of the test item must be higher than 5.63.
Further, from a water solubility of 6.3 mg/L and a vapour pressure of 4.3E-05 Pa a very low Henry´s law constant is calculated (2.78E-03 Pa*m^3/mol).
Accordingly, the substance is not expected to volatilize to any significant degree from water or moist soil. Due to the high estimated organic carbon normalized adsorption coefficient, within STPs a high degree of adsorption to sludge is expected and thus efficient removal from the water phase. Similarly, in water distribution to sediment will occur, while soil will be exposed to the compound in case of distribution of sludge on agricultural soil.
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