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EC number: 250-709-6
CAS number: 31570-04-4
Tris(2,4-di-tert-butylphenyl)phosphite is with high probability acutely not harmful to aquatic invertebrates.
A 24 hour static toxicity study
withDaphnia magna carried out according to OECD guideline 202 [Ciba,
1988].The exposure concentrations were greatly in excess of the water
solubility and the concentrations were not measured. The test solutions
were prepared with alkylphenol polyglycol ether as solubiliser.
No increase in the number of immobile
daphnids compared with controls were evident in groups exposed to 32,
58, 100 or 180 mg/l. An increase in the number of immobile daphnids
compared at higher concentrations may be caused by physical effects of
undissolved test materials. Overall, it can be concluded that the
results do indicate that the substance is not acutely toxic to Daphnia
magna at the limit of water solubility.
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