Registration Dossier
Registration Dossier
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EC number: 945-149-0 | CAS number: -
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Selected physico-chemical parameters and representative for environmental fate
Terpene hydrocarbon alcohols have the following constituent types of substances: Solely hydrocarbons-terpene type, Alcohol-type, Ketone-type and Ether-type all having a saturated or unsaturated cyclic hydrocarbon backbone. For Environmental fate, the Solely hydrocarbons present the more extreme values and data on Terpinolene is used for the risk assessment.
Abiotic degradation
Air: No experimental data on the phototransformation of the substance in air are available. Based on estimation with the QSAR model AopWin (v1.92) using Terpinolene as a key constituent, in air the substance undergoes rapid degradation after reaction with hydroxyl radicals with DT50 values of 0.64 hours. Degradation after reaction with ozone radicals is also rapid with DT50 values of up to ca. 10 minutes. This indicates that the substance is not a long-range transported chemical in air according to the UNECE criteria (http://www.unece.org/fileadmin/DAM/env/documents/2000/ece/eb/ece%20eb%20air.60.e.pdf). These half-lives will not be used for the CSA because these are calculated and not experimental values. Furthermore, the substance does not have an ozone depletion potential because it does not contain halogens and does not have the potential to reach the stratosphere (EU CLP (EC no. 1272/2008 and its updates)).
Key value for chemical safety assessment
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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