Registration Dossier
Registration Dossier
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EC number: 208-857-4 | CAS number: 544-01-4
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Bioconcentration factors in the range of 117 - 313 L/kg whole body ww (test concentration 60 µg/L) and 84 - 260 L/kg whole body ww (test concentration 6 µg/L) were observed.
Key value for chemical safety assessment
- BCF (aquatic species):
- 313 L/kg ww
Additional information
Diisopentyl ether has a low tendency for bioaccumulation in aquatic systems. Bioconcentration was studied in common carp (Cyprinus carpio) under flow-through conditions for 8 weeks at two concentrations of ca. 6 and 60 µg/L and at temperatures of approximately 25 °C. The fish used in the study had a lipid fraction of about 5.7 %. Test solutions were obtained by dilution of stock solutions that were prepared by dissolving diisopentyl ether in test water using Tween 80 as dispersant. The bioconcentration factors were determined as the ratio of the diisopentyl ether concentration in fish over the concentration in the test water assuming steady-state conditions after 8 weeks. The derived BCFs were 117 -313 L/kg whole body ww at the concentration of 60 µg/L and 84 -260 L/kg whole body ww at the concentration of 6 µg/L.
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