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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

The test substance is considered acutely harmful to aquatic organisms.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Dose descriptor:
LC50
Effect concentration:
50.9 mg/L

Additional information

The acute toxicity of tripropylamine to fish was investigated in a flow-through study with Pimephales promelas (fathead minnow) (Geiger et al., 1986). The applied method followed the procedure published in "Am. Publ. Health Assoc., Standard Methods for the Examination of Water and Waste Water, 15th Ed." The fish were exposed to mean measured concentrations of 3.0, 16.4, 25.0, 37.0, 53.8 and 85.9 mg/L. A 96 h LC50 of 50.9 mg/L (geom. mean measured) was determined for the neutralised test solutions.


 


In a supporting study the acute toxicity of tripropylamine to fish was assessed with Leuciscus idus (golden orfe) in accordance with German Standard DIN 38412, L15 (BASF AG, 1983). The 96 h test was conducted in a static mode. The pH of the highest test concentration was neutralised with HCl. The following results were reported for the test substance: 96 h NOEC = 21.5 mg/L, 96 h LC50 = 38.3 mg/L, 96 h LC100 = 46.4 mg/L for the non-neutralised solutions and a 96 h LC50 > 100 mg/L with the neutralised solution. However, the effect concentrations exceeded the solubility of substance in test medium, since at concentrations 46.4 - 100 mg/L undissolved test substance was visible. No analytical verification was applied in the experiment.


 


Based on the results of the key study, the test substance is considered acutely harmful to aquatic organisms.