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EC number: 212-774-9 | CAS number: 868-19-9
Table 1 Percentage inhibition of growth rate (total test period) during the final test
Strontium tartrate (anhydrous) concentration (mg/l)
* - effect was statistically significant
#- effect not biologically relevant
Table 2 Percentage inhibition of growth rate at different time intervals during the final test
Test substance1concentration (mg/l)
0 – 24 h
24 – 48 h
48 – 72h
1.Strontium tartrate (anhydrous)
A 72-h algae growth inhibition test was performed with the substance according to OECD 201 and in compliance with GLP principles. Nominal concentrations of 1.0, 3.2, 10, 32 and 100 mg/L were tested. Analyses of the samples taken during the final test showed that measured concentrations were stable and in agreement with nominal during the 72-hour test period (94-108% relative to nominal).
Growth rates were in the range of the controls at the concentrations of 1.0 to 10 mg/L during the 72-hour test period, whereas the growth rate of algae exposed to 32 and 100 mg/L were slightly reduced.
Statistically significant inhibition of growth rate was found at concentrations of 32 mg/L and higher. It should however be considered that the effects of 3.1 and 6.6% can be considered as not biologically relevant as they were below 10%. Therefore, the NOEC was determined to be 100 mg/L.
The 72h-ErC50 was >100 mg/L and the 72h-ErC10 was >100 mg/L.
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