Registration Dossier
Registration Dossier
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EC number: 200-872-4 | CAS number: 75-46-7
Endpoint summary
Administrative data
Description of key information
Additional information
The test substance will partition to the air compartment since it is highly volatile with a high Henry’s Law Constant. Within the air compartment, the rate constant for the vapor-phase reaction of the test substance with photochemically-produced hydroxyl radicals has been measured as 2.4x10E-16 cm³/molecule-sec at 25°C using a structure estimation method. This corresponds to an atmospheric half-life of about 180 years at an atmospheric concentration of 5x10E+5 hydroxyl radicals per cm³. This relatively slow half-life in the lower atmosphere suggests that some test substance may gradually diffuse into the stratosphere. The diffusion half-life for transport from the troposphere to the stratosphere is on the order of 20 years. Considering the long atmospheric lifetime, the test substance may have global warming potential.
The physical-chemical properties indicate that the test substance will not partition to water, soil, or the sediment environmental compartments. Therefore, biodegradation is not a relevant degradation mechanism. Also, hydrolysis is not expected to be an important degradation process.
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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