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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

A reliable study with 2-Butyloctan-1-ol showed acute toxicity to daphnia magna with a 48hr EC50 of 0.14 mg/l (nominal).

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
0.14 mg/L

Additional information

2 -Butyloctan-1-ol showed acute toxicity to daphnia magna with an EC50 of 0.14 mg/l (nominal). This result is in line with data available for the linear 1-dodecanol with an EC50 of 0.765 mg/l.

Experimental data on two other respresentatives of the category (2-hexyldecan-1-ol (C16) and mixture of 2 -octyldodecan-1-ol and 2 -hexyl-1-tetradecanol (C20) show no acute toxicity to daphnia up to the limit of water solubility. The effects observed for the C12 Guerbet alcohol can be a consequence of a higher water solubility of the substance with the shortest C-chain length of this category. Thus no aquatic toxicity is considered for the Guerbet alcohols with chain lengths >= C16 with an extremely low water solubility.