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EC number: 248-130-9
CAS number: 26952-13-6
Based on read across some components of alkenes C11/13/14 are acutely toxic to aquatic invertebrates at concentrations below their limit of solubility.
Data were read across from
dodec-1-ene. The toxicity of dodec-1-ene toDaphnia magnawas
investigated in an OECD 202 test (Brixham Environmental Laboratories,
2010). Due to the low solubility of the test substance the study used a
solvent carrier. The test substance was mixed with the solvent before
being added to the dilution water. It was then stirred for 48 hours
under sealed conditions to maximise the exposure concentrations. The
test was carried out with sealed test vessels and the solutions were
renewed daily to minimise the loss of the test substance.
At the lower loading rates
(0.032 - 0.18 mg/l) the measured concentrations were below the limit of
detection (0.01 mg/l) throughout the test. No effects were seen at these
loading rates. A 55% effect was observed at 0.32 mg/l, the next highest
loading rate. Exposure concentrations at this loading rate were
detectable throughout the exposure period except during the final 24
hour period when concentrations fell from 0.058 to <0.01 mg/l following
the final exchange. The EC50 therefore lies between loading rates of
0.18 and 0.32 mg/l and the analytical monitoring indicates that the
exposure concentrations at these loading rates was <0.063 mg/l.
also read across from tetradecene. Christensen (1996) tested the
toxicity of tetradecene to Mysidopsis bahia in a guideline study. Due to
the low solubility of the test substance used a Suspended Particulate
Phase (SPP) approach was used. A single SPP solution formed from 500ml
test substance in 4500ml dilution water was diluted to form the various
test concentrations. Increased mortality was not seen at the highest
tested concentration of 1000000mg/l SPP.
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