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Ecotoxicological information

Long-term toxicity to fish

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The sole use of the isobutyl acrylate monomer is as a chemical intermediate in the production of polymeric resins (emulsion polymers) with other monomers such as acrylic acid and its salts, amides, esters, methacrylates, acrylonitrile etc.. Isobutyl acrylate is handled primarily, if not exclusively, in closed systems.This use of isobutyl acrylate as a monomer for the production of copolymers in closed systems indicates that environmental exposure would be limited. The volatility of isobutyl acrylate provides for volatilization of any releases to the air. Isobutyl acrylate is slowly photodegradable and readily biodegradable, and accidental releases to the environment would not result in accumulation or persistence. The relatively high water solubility and corresponding low log Kow indicate that no bioaccumulation potential exists.

Acute effect levels were in the same range of concentrations based on mean measured concentrations for all three trophic levels, i.e. between 1 and 10 mg/L. In order to assess long-term toxicity towards aquatic organisms, a 21-day chronic life-cycle study with Daphnia magna was conducted with the structural analogue n-butyl acrylate by BASF SE (2009).