AMMONIUM SULFATE CAS N°: 7783-20-2

OECD SIDS
AMMONIUM SULFATE
4. ECOTOXICITY ID: 7783-20-2
DATE: 18.04.2006
AQUATIC ORGANISMS
4.1 Acute/Prolonged Toxicity to Fish
Type:
static
Species:
Leuciscus idus (Fish, fresh water)
Exposure period: 96 hour(s)
Unit: mg/l Analytical monitoring: no
LC0: 464
LC50: 681
LC100: 1000
Limit Test: no
Method: other: equivalent to OECD 203
Year: 1989
GLP:
yes
Test substance: as prescribed by 1.1 - 1.4
Result:
Clinical signs included apathy and tumbling at 1000 mg/L. No
signs of toxicity were noted at 100, 215, and 464 mg/L.
Mortalities at 96 hours:
100 mg/L: 0/10
215 mg/L: 0/10
464 mg/L: 0/10
1000 mg/L: 10/10
pH values after 1 hour were: 7.6, 7.5, 7.5, 7.3, 7.3 for
control, 100, 215, 464, and 1000 mg/L, respectively.
pH values after 96 hours were: 7.8, 7.7, 7.7, 7.6, and not
determined for control, 100, 215, 464, and 1000 mg/L,
respectively.
Oxygen content (mg/L) after 1 hour was: 7.7, 8.3, 8.5, 8.5,
8.6 for control, 100, 215, 464, and 1000 mg/L, respectively.
Test condition:
Oxygen content (mg/L) after 96 hours was: 8.0, 8.1, 8.2,
8.0, and not determined for control, 100, 215, 464, and 1000
mg/L, respectively.
TEST ORGANISMS: Golden orfe (Leuciscus idus L., golden
variety), 2.9 g (2.1-3.6 g), 6.7 cm (6.1-7.2 cm). The test
organisms were acclimated to the control diluent water in
the breeding/rearing tanks for 3 days. Food was withheld for
the 24 hours preceding start of the test and during the
test. Ten fish were exposed to the test chemical in each
treatment. Biological loading was 2.9 gram wet weight per
liter of test solution.
TEST VESSEL: The tests were performed in all-glass aquaria
of 30cmx22cmx24cm size to which 10 liters of test water were
added.
TEST SOLUTION: The test chemical was added directly to the
diluent water to give nominal concentrations of 100, 215,
464 and 1000 mg/L. The test chemical concentrations were not
analyzed. Once the test solutions were prepared, the
starting temperature, dissolved oxygen and pH values were
determined for each exposure concentration.
When the starting pH of the test soluton fell outside the
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