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Short-term toxicity to fish

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Description of key information

With high probability acutely not harmful to fish. 

Key value for chemical safety assessment

Additional information

An 96 -h acute toxicity study was conducted with 3,3'-iminodi(propylamine) (CAS 56 -18 -8) according to the German industrial test guideline DIN 38412, Part 15 (BASF AG 1979, report no. 79/42). The test was conducted with Leuciscus idus exposed to concentrations ranging from 100 to 464 mg/L in a static test system. The pH values of the test solutions were not adjusted. In addition a test concentration of 500 mg/L was tested for 72 h with neutralised test solutions. The LC50 for the non-neutralised test solutions was determined to be between 215 and 316 mg/L. After 72 h, the concentration of 500 mg/L showed no mortality after neutralisation with H2SO4. Hence, observed effects were caused by the pH shift in the test medium.

The concentrations were not analytically verified during the test, but 3,3'-iminodi(propylamine) is expected to be stable in water, as the substance is miscible in water (Gestis database 2012), its vapor pressure is moderate (VP = 1.26 Pa @20°C, BASF AG 1987, report no. 187.0002.1) and its Henry's Law Constant is low (HLC = 5.54 E-08 Pa m³/mol @ 25°C, calculated with HENRYWIN v3.20, not in applicability domain, BASF SE 2017).

In conclusion, the substance is considered to be with high probability acutely not harmful to fish.