Registration Dossier
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EC number: 931-210-9 | CAS number: 1266534-73-9
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
ECr50(72h) > 100 mg/L
NOEC(72h) >= 100 mg/L
Key value for chemical safety assessment
Additional information
The study on toxicity to aquatic algae of Aluminium silicate and titanium oxide matrix doted with vanadium, nickel, and antimony investigated the effects on Desmodesmus subspicatus following OECD 201 as limit test (Muckle 2010, RL2). A saturated solution with 125 mg/L test item was prepared, shaken for 24 h and then filtered with a membrane filter. Growth rate, biomass (area under the curve) and yield were determined. Since no effects were observed, a NOEC(72) >= 100 mg/L and an EC50(72h) > 100 mg/L for growth rate, biomass and yield was stated.
Additional data for toxicity to aquatic algae are available for the following source substances which serve as potential data sources for the analogue approach of Aluminium silicate and titanium oxide matrix doted with vanadium, nickel, and antimony:
- Source chemical 2 - Zeolite, cuboidal, crystalline, synthetic, non-fibrous:
ECr50(72h) = 130 mg/L, NOEC(72h) = 18 mg/L, Desmodesmus subspicatus, Rudolf 2005
- Source chemical 5 - Aluminium oxide:
ELr50(72h) > 100 mg/L, NOEC(72h) >= 100 mg/L, Selenastrum capricornutum, Tobiensen and Kallquist 1996
In accordance with the target substance, the available data for the source substances also provide a low potential for short-term toxicity to freshwater invertebrates.
The respective references for the source substance data can be found in the data matrix of the justification for the analogue approach, which can be found either in the CSR or as attachment in Iuclid section 13.
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