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EC number: 201-114-5
CAS number: 78-40-0
A number of published and proprietary studies are available.
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)]
and in the fathead minnow were all reported to be >100 mg/L.
The acute toxicity of triethylphosphate was investigated in the bleak
(Alburnus alburnus). The 96 -hour LC50 value of the substance was
calculated to be 2100 -2400 mg/L (Linden et al, 1978).
The acute aquatic toxicity was investigated in Oryzias latipes. The 48
-hour LC50 of the substance is reported to be >500 mg/L (CITI, 1992).
The acute toxicity of triethyl phosphate was investiagted in Leuciscus
idus. The 48 -hour LC0, LC50 and LC100 values were found to be 1926
mg/L, 2140 mg/L and 2500 mg/L under the conditions of this study (Knie
et al, 1983).
The acute toxicity of triethylphosphate was investigated in Danio rerio.
No deaths occurred at concentrations of up to and including the highest
tested concentration of 100 mg/L. The 96 -hour LC50 of triethylphosphate
in Danio rerio is therefore >100 mg/L (Bayer, 1985a). The acute toxicity
of triethylphosphate was also investigated in Leuciscus idus. 50%
mortality was seen in an initial study performed at 100 mg/L, however no
effects were seen in subsequent experiments at 133 or 100 mg/L. The LC50
is therefore considered to be >= 100 mg/L (Bayer, 1985b).
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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