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EC number: 256-032-2
CAS number: 42978-66-5
TPGDA is acutely harmful to aquatic algae.
Considering the toxicity of
Tripropylenglykoldiacrylate (TPGDA, CAS 42978-66-5) to aquatic algae,
experimental data are available for fresh water.
A static non-GLP 72 -h test with Desmodesmus
subspicatus was conducted according to the German standard DIN
38412 p 9 (similar to OECD 201). The 72-h ErC50 and the 72 -h EC10 were
65.9 and 6.6 mg/L respectively (nominal, BASF AG, 1988, Rep.
The substance was dissolved in chremophor
(stock solution: 0.1%) prior to testing.
The test concentrations were not
However, the test concentrations are
assumed to be stable over the exposure period based on a sufficient
water solubility, a low Henry's Law constant (see IUCLID Ch. 5.4.2) and
a low adsorption potential (log Kow = 2.7, measured, see IUCLID Ch.4.7;
Log Koc = 3, worst-case, estimated, see IUCLID Ch. 5.4.1).
In conclusion, the substance with high
probability is acutely harmful to aquatic freshwater algae.
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