Registration Dossier
Registration Dossier
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EC number: 939-618-9 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Abiotic degradation
Air: No experimental data on the phototransformation of the substance in air are available. Based on estimation with the QSAR model AopWin the substance undergoes in air rapid degradation after reaction with hydroxyl radicals with a DT50 value of 9.5 hours. No ozone reaction estimation could be made with AopWin. The substance will not reach the stratosphere and is therefore not considered to be a long-range transported chemical in air. 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 amendments).
Water: Based on a study performed on the substance, the half-life times at 25°C are >1 year at pH4, 22 days at pH7 and 10 hours at pH9. It is concluded that the substance is hydrolytically unstable at pH9.
Biotic degradation:
In a biodegradation screening study (OECD TG 301D), after 28 days exposure of activated sludge to 2 mg/L substance 8% biodegradation was observed. Prolongation of this study to 120 days resulted in a maximum 48% degradation. Based on these findings the substance is considered to be not readily biodegradable.
Bioaccumulation:
Bioaccumulation test on aquatic species is waived based on the fact that the available information (log Kow and calculated BCF values) is deemed sufficient for the PBT assessment, classification and labelling and the chemical safety assessment. Overall it can be concluded that the substance has a limited bioaccumulation potential with calculated BCF values (based on a log Kow of 3.8) for aquatic and terrestrial organisms of 339 and 76.6 L/kg ww, respectively.
Transport and distribution:
The adsorption coefficient of the substance has been determined to be in the range log Koc <1.26 -3.96 (7 peaks), using the HPLC screening method (OECD TG 121). Averaging the log Koc values of peaks 2 -7 (peak 1 is excluded as it is considered likely not to be the substance or one of its constituents) gives a log Koc value for CP Formate of 2.99. This indicates that the substance will have moderate potential to adsorb to sediment/soil.
A Henry's law constant of 50.5 Pa·m3/mol (at 12 °C) was calculated in EUSES and therefore substantial volatilisation from water can be expected.
Based on Level III environmental distribution modelling using EPISUITE (assuming equal and continuous releases to air, water and soil) using the CAS number 25225-08-5 and the measured physico-chemical parameters (water solubility and log Kow), and the experimentally determined Koc value as input, it is estimated that the majority of the substance released to the environment will partition mainly into soil (85%) and water (12%) with small amounts to air (1.7%) and sediment (0.9%).
The SimpleTreat model, which is incorporated in EUSES, simulates the distribution of the substance in a Sewage Treatment Plant based on vapour pressure, water solubility, log Koc and ready biodegradability. Model calculations show that 0% of the substance will be degraded and that 49%, 39% and 12% will partition to water, air and sewage sludge, respectively.
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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