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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 201-069-1 | CAS number: 77-92-9
Endpoint summary
Administrative data
Description of key information
Additional information
Abiotic degradation
Citric acid does not possess any functional group that is susceptible to hydrolysis and the substance is expected to be stable in aqueous solution. In addition, the biodegradability of the substance dominates the understanding of stability.
Biotic degradation
Available data suggest that citric acid is rapidly degradable in surface water, soils and sediment. Therefore, based on available data, citric acid is not expected to present a hazard to the environment.
Table: Degradation rates of citric acid
Degradation rate in water: |
Readily biodegradable |
Degradation rate in sediment: |
Readily biodegradable |
Degradation rate in soil: |
Readily biodegradable |
Degradation rate in air: |
Half-life in air: 2.2 days (calculated) |
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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