Reactionmass of octan-2-yl prop-2-enoate and octan-3-yl prop-2-enoate and octan-4-yl prop-2-enoate

Endpoint summary

Additional information

No studies were performed on phototransformation.  In the abiotic control of the inherent biodegradation test, the test material could not be detected at the end of the test. In abiotic hydrolysis tests, contradictory results were obtained. In the key test, dissipation half-lives could be calculated for at 50 °C for all pH values and all isomers. Half-lives at 25 °C could be calculated for 2-octyl acrylate for all pH values, at pH 7 and 9 for 3-octyl acrylate, and only at pH 9 for 4-octyl acrylate. Half-life at 15 °C could only be determined for 2 -octyl acrylate at pH 9. Analysis of the secondary alcohol hydrolysis products could only provide a mass balance at pH 9.  At pH 4 and pH 7, concentrations of acrylate isomers as well as the corresponding secondary alcohols declined simultaneously.  In the disregarded study, disappearance of acrylate occurred much more rapidly.  Dissipation half-lives could not be calculated in any trial due to limited sampling interval. Samples were taken at zero and six hours only for 15 °C and 25 °C. Sampling at 50 °C was done until four days, but essentially all loss occurred before the first sampling time of six hours. The secondary alcohols were examined but could not be quantified in the disregarded study.