Registration Dossier
Registration Dossier
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EC number: 234-975-0 | CAS number: 12047-27-7
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Key study, Pseudokirchnerella subcapitata, 48 h; EC > 100 mg/L (GLP, OECD 201 guideline study, TUEV SUED, 2012)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 100 mg/L
Additional information
In order to assess the toxicity to aquatic algae of the test substance barium titanium trioxide (purity: > 99 weight-%), the test in Pseudokirchnerella subcapitata was performed according to the method described in OECD guideline 201 (TÜV SÜD PSB, 2012). A limit test with a concentration of 100 mg/L of the test substance was carried out with an exposure duration of 48 hours.
The EC50 for growth rate was estimated to be higher than 100 mg/L as no inhibition effect on the growth of the algae used for the test was observed.
From the above study, the test item Barium titanate milled ABT-O-21 has passed the limit test. At a concentration of 100 mg/L the test substance had no inhibition effect on the growth of the algae used for the test. The EC50 of the test substance is higher than 100 mg/L.
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