Registration Dossier
Registration Dossier
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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: 939-066-9 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Stability:
Hydrolysis as function of pH: Data waiving (study scientifically not necessary): In accordance with Column 2 of REACH Annex VIII, the study does not need to be conducted since the substance is readily biodegradable.
Biodegradation:
Biodegradation in water: screening tests: Weight of evidence: Based on the experimental results obtained on the analogue substances where all of them were determined to be ready biodegradable, the weight of evidence approach was applied and the substance Fatty acids, C16-18 (even numbered), ammonium salts was determined to be ready biodegradable.
Biodegradation in water and sediment: Data waiving (study scientifically not necessary): In accordance with Column 2 of REACH Annex IX, the study does not need to be conducted since the substance is readily biodegradable.
Biodegradation in soil: Data waiving (study scientifically not necessary): In accordance with Column 2 of REACH Annex IX, the study does not need to be conducted since the substance is readily biodegradable.
Bioaccumulation:
Bioaccumulation: aquatic/sediment: Weight of evidence: Based on the estimation of BCF by BCFBAF v3.01 model of EPI Suite v4.1 for ammonium stearate and ammonium palmitate, and the experimental results obtained on sodium laurate, the weight of evidence approach was applied and the BCF for the substance Fatty acids, C16-18 (even numbered), ammonium salts was determined to be 255 L/Kg based on the worst case assumption.
Transportation and distribution: Soil adsorption:
Key study: The estimated soil adsorption coefficient for ammonium stearate (main constituent of the substance) was Koc: 23370 L/kg and Log Koc: 4.369 and for ammonium palmitatate (main constituent of the substance) was Koc: 7038 L/kg and Log Koc: 3.847 (KOCWIN v2.00, MCI method).
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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