Registration Dossier
Registration Dossier
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EC number: 235-819-4 | CAS number: 12777-87-6
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
The biodegradation is defined as the biologically mediated degradation or transformation of chemicals usually carried out by microorganisms. (Guidance on information requirements and chemical safety assessment - Chapter R.7b: Endpoint specific guidance)
According to column 2 of Annex IX (standard information requirements for substances manufactured or imported in quantities of 100 tonnes or more) of Regulation (EC) No 1907/2006 a simulation study on biodegradation in soil does not need to be conducted if direct and indirect exposure of soil is unlikely.
Production, handling and use of the substance only take place at a small number of industrial sites with low probability of any significant release from products.
Sulphuric acid, compound with graphite is an inorganic solid, consisting of natural graphite and variable amounts of intercalated sulphuric acid.
Graphite is a naturally occurring solid substance which is insoluble in water. Due to its physico-chemical properties it is not systemically and biologically available and does not cross biological membranes. In the aquatic compartment it can be considered as an inert substance.
Biologically mediated degradation or transformation of graphite carried out by microorganisms is therefore unlikely to occur.
The intercalated sulphuric acid is partially leached out by water and dissociated into the environmentally ubiquitous sulphate and hydronium ions.
Given the inherent properties of sulphuric acid, compound with graphite and the unlikelihood of exposure of soil to sulphuric acid, compound with graphite, testing of biodegradation is considered not to be necessary and is not required under Regulation (EC) No 1907/2006 (REACH).
Key value for chemical safety assessment
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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