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EC number: 201-114-5
CAS number: 78-40-0
The results of a number of published and proprietary studies are available.
Bringmann & Kuehn (1982) describe an improved standardised procedure for
the assessment of the toxic effects of chemicals on Daphnia magna. The
24 -hour EC0, EC50 and EC100 values for Daphnia magna (immobilisation)
were calculated to be 603 mg/L, 900 (841 -1061) mg/L and 1250 mg/L
respectively, under the conditions of this study.
Ewell et al (1986) describe the development of a test system designed to
simultaneously assess the aquatic toxicity of chemicals to seven
species, including six invertebrate species. Under the conditions of
this study, the 96 -hour LC50 of triethyl phosphate in the invertebrate
species tested [Asellus intermedius (pillbug), Daphnia magna (water
flea), Dugesia tigrina (flatworm), Gammarus fasciatus (sideswimmer),
Helisoma trivolvis (snail) and Lumbriculus variegatus (segmented worm)]
were all reported to b >100 mg/L.
Knie et al (1983) report the results of a series of aquatic toxicity
tests with various chemicals. EC0, EC50 and EC 100 values for triethyl
phosphate in Daphnia magna of 500, 950 and 1500 mg/L respectively are
The acute toxicity of triethyphosphate was assesed in Daphnia magna
Straus in a range-finding study for the reproductive toxicity study. The
24 -hour EC0, EC50 and EC100 values for triethyphosphate in Daphnia
magna were found to be 1000 mg/L, 2705 mg/L and 5000 mg/L respectively,
under the conditions of this test (Bayer, 1987).
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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