Registration Dossier
Registration Dossier
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EC number: 914-103-1 | CAS number: -
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
In all probability not acutely harmful to fish.
Key value for chemical safety assessment
Additional information
Studies on the acute toxicity of the reaction mass of ammonium sulphate and potassium sulfate and sodium sulphate to fish are not available. The presented data refer to studies conducted with the single components ammonium sulphate, potassium sulfate and sodium sulphate respectively. The three components of the reaction mass dissociate in aqueous solution. The respective ions are naturally occurring in the environment and are furthermore essential nutrients for fish. The intra and extracellular concentration is actively regulated by the organism. Thus toxicity of the constituents of the reaction mass to fish is not expected. This is supported by the available data on the single components ammonium sulphate, potassium sulfate and sodium sulphate respectively.
The toxicity of ammonium sulphate to Salmo gairdneri was tested in a flow-through test system. The fish were exposed to the substance for 96 hours. At test termination a LC50 of ca. 173 mg/L based on a nominal test concentration was determined (Thurston and Russo; cited in OECD SIDS, 2007). Comparable results were obtained for sodium sulphate. In a study following EPA guideline 600/4-90/027 (1991) Pimephales promelas were exposed to sodium sulphate in a static test system. The test was terminated after 96 hours and a LC50 of 7960 mg/L based on measured test concentrations was detected (Mount et al., 1997; cited in OECD SIDS, 2005). The toxicity of potassium sulfate to fish was tested in a static test system set up in compliance with EPA/600/4-90/027 and EPA/600/6-91/003 (1991). Pimephales promelas were used as test organisms. The fish were exposed to potassium sulfate for 96 hours and a LC50 of 680 mg/L based on measured concentrations was reported (Mount et al., 1997; cited in OECD SIDS, 2007).
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