Registration Dossier
Registration Dossier
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EC number: 211-536-1 | CAS number: 659-70-1
Endpoint summary
Administrative data
Description of key information
Adsorption/desorption:
No experimental studies investigating the adsorption/desorption potential of the test substance are available. Therefore, the Koc and the log Koc were calculated using KOCWIN v2.00 based on the Molecular Connectivity Index (MCI) and based on the log Kow. Calculations resulted in Koc values of 765.5 L/kg (estimation based on log Kow) and 151.5 L/kg (MCI) and in corresponding log Koc values of 2.88 (estimation based on log Kow) and 2.18 (MCI) . The mean values of the Koc and log Koc were 458.5 L/kg and 2.53, respectively, indicating that the substance has a low to moderate potential to adsorb to organic soil and sediment particles. These values were taken as basis for the PNEC calculations for sediments and soil.
Henry´s law constant:
The Henry´s law constant value for the test substance was derived with the formula given in the ECHA Guidance from 2016 (Guidance on information requirements and Chemical Safety Assessment, Chapter R.16: Environmental exposure assessment). The value was calculated to be 465 Pa m3/mol. The value was taken as basis for the PNEC calculations for sediment and soil.
Additional information
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