Registration Dossier
Registration Dossier
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EC number: 942-582-7 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Based on a worse case approach taking into account the highest toxicity to Fish, to Daphnia and to green Algae observed with the 3 source substances [Potassium sulfate (CAS 7778-80-5), Sodium sulfate (CAS 7757-82-6) and Calcium sulfate (CAS 7778-18-9)], the following representative values are obtained for the target substance "Sulfates of potassium, sodium and calcium, by-product from fermentation” :
- For Fish (Pimephales promelas), the 96h-LC50 = 680 mg/L,
- For Invertebrates (Daphnia magna), the 48h-EC50 = 720 mg/L,
- For Green Algae (Pseudokirchneriella subcapitata), the 96h-EC50 = 1562 mg/L and the NOEC = 810 mg/L,
- For Aquatic Plant (Lemna minor), the 7d-EC50 value of 2415 mg/L,
- For activated sludge, the 3h-NOEC value of 790 mg/L.
Due to the very low acute toxicity to fish and invertebrates observed for the target substance, the performance of aquatic chronic tests is not scientifically justified. The result obtained with one of the source substance, sodium sulfate, on the reproduction of Ceriodaphnia dubia, 7d-NOEC = 1109 mg/L, demonstrated the lack of adverse effects to invertebrates after chronic exposure and strengthened the argument that a chronic test is not justified when the acute tests show very high LC50/EC50 like for the 3 source substances.
According to CLP criteria, the substance is not classified for its toxicity to aquatic organisms.
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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