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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 201-178-4 | CAS number: 79-11-8
Endpoint summary
Administrative data
Description of key information
MCA is a weak acid (pKa = 2.86) under environmental conditions MCA will occur in anionic or salt form e.g. sodium monochloroacetic acid (SMCA). Therefore ecotoxicological data from both MCA and SMCA can be used for hazard and risk assessment.
Based on the physicochemical properties (log Kow = 0.49, solubility = 1000 g/L), the substance is expected to have a very low potential to adsorb to soil and sediment and will therefore stay in the water phase.
Also, due to the low log Kow MCA does not have a potential to bioaccumulate.
The substance is readily biodegradable (aerobically as well as anaerobically) and will therefore not persist in the environment.
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.
