Registration Dossier

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 followingconstituent 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 the measured values for vapour pressure and log Kow are considered to represent this group: 51.9 Pa and log Kow is 4.9. The latter value is derived based on the average value of the highest log Kow found for the Terpene hydrocarbon alcohols (which is considered to represent Terpinolene) and the measured value for Terpinolene as presented on the ECHA website. For the water solubility the measured of the substance is used to also present the other more water soluble constituent types.

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