Registration Dossier
Registration Dossier
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EC number: 436-900-9 | CAS number: 39290-90-9
Endpoint summary
Administrative data
Description of key information
Additional information
Terracess P is of very low toxicity to aquatic organisms. Terracess P is highly insoluble in water.
No adverse effects were found, other than effects in the aquatic tests at levels far above the water solubility of the test substance.
Toxicity to fish:
The 96h-LC50 for Carp exceeded the maximum solubility of the test substance in water at a loading rate of 100 mg/L. The calculated 96h-LC50 for Carp is > 1417 ug/L. This is an avearge of the measured Ti concentrations in the filtered test solutions that decreased from 2866 ug/L to 146 ug/L during the test period. the calculated 96h-LC50 is 5141 ug Terraces P/L.
Toxicity to aquatic invertebrates:
Terracess P did not induce acute immobilisation of Dapnia magna at a loading rate of 100 mg/L after 48 h of exposure. The EC50 exceeds 23536 ug/L based on Ti analysis that corresponds to an EC50 of 85397.84 ug Terraces P/L.
Toxicity to algae:
Effects from Terracess P on growth of the fresh water algae species Selenastrum capricornutum only occurred at concentrations above the water solubility limit which calculated to be 36 ug/L Terraces P .
Toxicity to microorganisms:
Under the conditions of test, Terracess P is not toxic to waste water (activated sludge) bacteria at a nominal concentration of 100 mg/L. The EC50 exceeded a loading rate of 100 mg/L.
Long term toxicity:
All data available on Terracess P show a very low toxicity of the substance. In addition, the substance is an inorganic substance with a very low water and n-octanol solubility. Its chemical properties do not indicate bioaccumulation. Therefore, no long term toxicity testing is proposed.
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