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EC number: 406-420-4
CAS number: 69430-40-6
I n the range finding no significant immobility of daphnia was seen at
all concentrations tested. However, the mobility of all daphnia exposed
to 1000 mg/l had decreased i n comparison with the controls.
FINAL STUDY: IMMOBILITY
After 48 hours o f exposure no significant immobility of daphnia was
seen at all concentrations tested.
FINAL STUDY: EXPERIMENTAL CONDITIONS
The pH varied from 6.3 to 8.4.
Oxygen concentration in the test media was found to be > 5 mg/l for a1l measurements.
The temperature of the test medium measured i n the blank control varied
from l 9 to 20.5 ° C.
FINAL STUDY: ACCEPTABILITY OF THE TEST
In the controls not more than 10% o f the daphnia became immobilized or
trapped at the surface of the water .
Daphnia were exposed for a maximum of 48 hours to a concentration range
of 100 to 1000 mg/l forming a geometric progression with a factor of
1.8. The test was performed in duplicate with 10 daphnia per vessel.
After 48 hours of exposure no significant immobility of daphnia was seen
at a11 concentrations tested.
Under conditions of the present sutdy, DC 5067 appeared to be non-toxic
to Daphnia magna, i . e . , the 48h-EC50 with respect to mobility was >
nominally 1000 mg/l .
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