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EC number: 218-485-4
CAS number: 2162-73-4
The acute toxicity of m-tolylidene
diisocyanate to Daphnia magna was investigated according to OECD
Guideline 202 (Tadokoro et.al., 1997). The main test was conducted with
an initial pH of 7.5 and dissolved oxygen of 8.4 - 8.6 mg/L. The test
duration was 48 hours, resulting in an EC50 value of 12.5 mg/L. A final
total TDA concentration of 5 mg/L was measured, which was expected
before, due to the hydrolytic behaviour of TDI. Furthermore, the test
was carried out at initial pH values of 6 and 9, resulting in EC50
values of 1.6 mg/L and 17.7 mg/L, respectively.
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