Registration Dossier
Registration Dossier
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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 939-618-9 | CAS number: -
Endpoint summary
Administrative data
Description of key information
The adsorption potential of the substance was determined in a study according to OECD TG 121 (HPLC method). Under the conditions of the test, the log Koc of the substance was determined at 2.99 (equivalent Koc = 977 L/kg). Based on this value the substance has moderate potential for adsorption to solid surfaces and soil.
A Henry's law constant of 50.5 Pa·m³/mol (at 12 °C) was calculated in EUSES (Vapour pressure 13.4 Pa, 184.28 g/mol molecular weight and 26.12 mg/L water solubility (13.4 x 0.182/0.02612). Based on this value the substance will partition from water to air.
Based on Level III environmental distribution modelling using EPISUITE(assuming equal and continuous releases to air, water and soil) using the CAS number 25225 -08 -5 and the measured physico-chemical parameters (water solubility and log Kow), and the experimentally determined Koc value as input, it is estimated that the majority of the substance released to the environment will partition mainly into soil (85%) and water (12%) with small amounts to air (1.7%) and sediment (0.9%).
The SimpleTreat model, which is incorporated in EUSES, simulates the distribution of the substance in a Sewage Treatment Plant (STP) based on vapour pressure, water solubility, log Koc and ready biodegradability. Model calculations show that 0% of the substance will be degraded and that 49%, 39% and 12% will partition to water, air and sewage sludge, respectively.
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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