Registration Dossier
Registration Dossier
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EC number: 942-582-7 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Due to its high water solubility and low vapour pressure, the target compartment of the registered substance “Sulfates of potassium, sodium and calcium, by-product from fermentation” is the water compartment. Since this substance is inorganic, biodegradation is not relevant. However the fate of this substance in the water compartment has been studied in a transformation/dissolution GLP test, performed on the basis of the Annex 10, Guidance on Transformation/Dissolution of Metals and Metal Compounds in Aqueous Media (OECD No.29). The results of this study have demonstrated that the test item is effectively completely transformed/dissolved within 2 hours into Na+, K+, Ca ++ and SO4—ions when added at the concentration of 100 mg/L in reconstituted standard water (ISO 6341) at pH 7 and 20°C. When added at the concentration of 10 g/L into purified water at pH 2 and 37°C, the transformation of the test item into Na+, K+, Ca ++ and SO4-- ions is complete after 0.5 h.
This rapid transformation of “Sulfates of potassium, sodium and calcium, by-product from fermentation” into Na+, K+, Ca ++ and SO4—ions occurs in the water compartment which is the target compartment for this substance. It can also occur in the water phase of sediments and soils.
The Na+, K+, Ca ++ and SO4—ions formed are highly soluble in water and so a low potential of adsorption is expected. Likewise due to their high solubility, they are not suspected of bioaccumulation. Moreover these ions are essential to living organisms and their intracellular concentration is actively regulated.
Additional information
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