Registration Dossier
Registration Dossier
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EC number: 200-866-1 | CAS number: 75-37-6
Endpoint summary
Administrative data
Description of key information
Additional information
Under environmental conditions, the test substance exists exclusively as a gas. Based on its physico-chemical properties, when released to the environment it will partition primarily into the air compartment and consequently surface water, soil and sediment are not environmentally relevant compartments. The test substance does not undergo appreciable biodegradation and does not hydrolyze. Vapor-phase test substance is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals with a lifetime of 1.4 years (OECD SIDS, 2006). The atmospheric lifetime of this chemical suggests that it will mix throughout the troposphere. With a global warming potential (GWP) of 140 relative to CO2, the test substance has a low potential contribution to global warming. In addition, some test substance is expected to diffuse into the stratosphere and slowly degrade due to reaction with hydroxyl radicals and direct photolysis from UV-C radiation. The ozone depletion potential (ODP) of the test substance has been determined to be negligible (OECD SIDS, 2006).
Reference:
OECD SIDS (2006). SIDS Dossier on the HPV Chemical 1,1-Difluorethane (HFC-152a), CAS No. 75-37-6 (18-21 April) (http://www.inchem.org/documents/sids/sids/75376.pdf).
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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