Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 205-516-1 | CAS number: 141-97-9
Endpoint summary
Administrative data
Description of key information
Environmental Fate
Ethyl acetoacetate (EAA) is a colourless, organic liquid. The substance is a mono-constitutent substance with high purity and a relative density of 1.0767. The physical chemical properties indicate that MAA would be expected to be found in water. The vapor pressure is relatively low (0.26 hPa at 20 °C)indicating that EAA is slightly to moderately volatile. EAA is considered highly soluble. The water solubility for EAA was determined to be 130.3 g/L. Thus, EAA is expected to be soluble and mobile in the aquatic environment.
Biodegradation in water
The substance was found to be readily and inherently biodegradable. EAA was assessed in a ready biodegradability and in an inherent biodegradability study, showing a biodegradation rate of 66% after 28 days in the closed bottle test and 90% elimination after 5 days in the inherent bioegradation study.
Biodegradation in sediment
Sediment simulation testing was not conducted as direct and indirect exposure to sediment is unlikely. The test substance entering the water is not likely to sorb onto suspended solids and sediment based upon the log Pow of 0.8.
Biodegradation in soil
Soil simulation testing does not need to be conducted as there is no direct or indirect exposure to soil for this test substance.
Potential for Bioaccumulation
EAA is not likely to bioaccumulate. Experimental determination of bioaccumulation was waived based on its water solubility, partition coefficient and biodegradability. MAA is readily and inherently biodegradable, the log octanol water partition coefficient was shown to be 0.8 and the water solubility to be 130.3 g/L
Adsorption/desorption
Testing for adsorption/desorption was waived, as the substance is expected to have a low potential for adsorption (log Pow = 0.8). Further, the substance and its relevant degradation products decompose rapidly (ready and inherently biodegradable). The Koc was estimated to be 31.45 L/kg (log Koc 1.4976) at 25°C.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
