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EC number: 244-617-5
CAS number: 21850-44-2
Rainbow trout: The test substance was found to be non toxic at concentration up and including 100 mg/l.Orange- red Killfish: The test substance was found to be non toxic at concentration up and including 500 mg/l.
Rainbow trout: The results of this study indicate that at concentration
up and including 100 mg/l (nominal concentration WAF) the test substance
was not toxic to rainbow trout. The highest no observed (lethal) effect
concentration (NOEC) could not be determined as there was 0% mortality
at the highest test concentration (100 mg/l). The LC50 values therefore
estimated as > 100 mg/l at all time points from 24 -96 hr. preliminary
investigations of the water solubility of the test sample indicated that
it became more soluble with time and range finding studies indicated no
toxicity up to 100 mg/l WAF. A limit test at the highest test
concentration was considered most appropriate with WAFs prepared at a
concentration of 100 mg/l stirred for 10 days.
A mortality of 0% was observed in the control tank at the end of the
test period and the dissolved oxygen concentration ranged from 92 -100%
ASV. Further no fish were observed to be distressed and no other adverse
effects were noted.
Samples of the test solutions in which the fish were exposed were taken
for analytical verification at the start of the definitive study, at 24,
48, 72 and 96 hr period (end of experiment). Test substance specific
analysis of each test conc. was carried out as soon as possible after
sampling,with samples being stored frozen until analysis. Where it was
not possible to measure actual conc. in the test system, results were
based on nominal conc.
Orange red kill fish: 96hr acute toxicity test was conducted under
continous flow system. The results indicate that the test substance was
found to be non toxic at concentration up and including 500 mg/l.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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