Registration Dossier
Registration Dossier
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EC number: 205-488-0 | CAS number: 141-53-7
Endpoint summary
Administrative data
Description of key information
Hydrolysis
In accordance with column 2 of REACH Annex VII, the study does not need to be performed if the substance is readily biodegradable. Sodium formate is readily biodegradable (KM Lab, 1998).
Besides being readily biodegradable, sodium formate dissociates in water to sodium ion and formate ion.
Both of these are considered stable in water. A carboxylic acid is generally the final product of hydrolysis reactions (Lyman, 1990).
Biodegradation
Sodium formate is readily biodegradable.
According to OECD Guidance, when a chemical attains more than 60% ThOD or more than 70% DOC removal in a Biodegradability in Seawater test (OECD 306) it can also be expected to fulfil the criteria for ready biodegradability, given that the degradation potential in seawater in normally lower than in freshwater degradation tests (OECD, 2002). Sodium formate achieved 86% degradation (ThOD) over 28 days in a reliable OECD 306 study, and can therefore be regarded as readily biodegradable (KM Lab, 1998).
Bioaccumulation
In accordance with column 2 of Annex IX, the study does not need to be conducted if the 1-octanol/water partition coefficient is <3. Due to the low logPow of below -1.8 (Perstorp, 2009), accumulation in organisms is not expected. Thus, and for reasons of animal welfare, no study on bioaccumulation in fish is performed.
Adsorption / desorption:
In accordance with column 2 of REACH Annex VIII, the study does not need to be conducted since sodium formate is readily biodegradable (KM Lab, 1998) and has a low potential for adsorption due to high water solubility coupled with a very low octanol-water partition coefficient (log Kow <-1.8; Perstorp, 2009).
Read across to formic acid reveals an adsorption rate for the formate ion ofKoc = 31 (log Koc = 1.49) (BASF SE, 2009).
Henry's law constant:
The Henry's Law Constant (HLC) of the analogous substance formic acid was determined to be 0.019 Pa m³/mol at 25 °C (Khan & Brimblecomb, 1992).
Distribution modelling:
Over time, the substance will preferentially distribute into the compartment water.
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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