Registration Dossier
Registration Dossier
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EC number: 207-997-3 | CAS number: 504-63-2
Endpoint summary
Administrative data
Description of key information
Additional information
Based on physico-chemical properties and the fugacity level III modelling, this test substance will partition into water and soil. The test substance was shown to be readily biodegradable in an OECD 301B study. The amount of carbon dioxide evolution was 71% after 28 days, indicating that the test substance is completely mineralized without any significant metabolites or degradation products. Persistence of the test substance in the environment is therefore not expected.
The test substance is not expected to adsorb to suspended solids and sediment based upon the logKow (-0.71) if released into water. In soil, this test substance is expected to be mobile, however, rapid biodegradation is expected to mitigate potential transport to groundwater.
The vapour pressure of the test substance is 3.91 Pa (CSR Section 1.3). Consequently, the test substance can be considered as potentially volatile from surfaces and likely to volatilize to air under dry conditions. However, the Henry's law constant for the test substance is 2.98E-4 Pa m3/mol (based on a water solubility of 1000 g/L, measured solubility >1000 g/L) indicating that the test substance is non-volatile in water. An estimation of the potential atmospheric half-life of the test substance in air (1.65 days AOPWIN, v1.92a) indicates that the test substance is unlikely to persist in air. Therefore, any concentrations of the test substance in air from treated surfaces are considered to be negligible.
With regards to environmental accumulation, the test substance has been shown to be readily biodegradable and has a Kpsoil <100 L/kg. For assessment purposes an environmental degradation rate or DT50value of 30 days in bulk soil was estimated based on REACH guidance R16-6 (ECHA, 2009). Therefore, any environmental levels of the test substance resulting from treatments or applications of products containing the active substance are likely to be insignificant.
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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