AMMONIUM SULFATE CAS NÂ°: 7783-20-2

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OECD SIDS AMMONIUM SULFATE 4. ECOTOXICITY ID: 7783-20-2 DATE: 18.04.2006 LC50 values increased from 0.031 to 0.111 mg un-ionized NH3-N/L at mean pH 6.0 as temperature increased from 2.1 to 17.1 °C. Similarly, at mean pH 6.45, mean LC50 increaed from 0.030 to 0.146 mg NH3-N/L as temperature increased from 1.8 to 12.5°C. The behaviour of intoxicated fish consisted of coughing, hyperventilation followed by sporadic ventilation, twisting, loss of equilibrium and spiral swimming, convulsions and death following a coma-like state. Test condition: The fish were acclimated for at least 2 weeks to the control water quality and stocking conditions before being use in experiments. Each aquarium had 10 fish. The tests were conducted in twelve 40-L glass aquaria filled with 30-L of test solution. The fish were not fed during temperature acclimation (24 hours) and the 96-hours test period. The pH was adjusted using NaOH or H2SO4. The 96-hour LC50 values were determined for various pH (6.00 - 6.45) and temperatures (1.8 - 17.8 °C). The resulting LC50 values (603-2758 mg/L) expressed in ammonium sulfate concentrations, have been converted from 128 - 585 mg/L TAN given in the report. Reliability: (2) valid with restrictions limited documentation 23-JAN-2004 (69) Type: static Species: other: Barbus ambassis (freshwater Barb) Exposure period: 48 hour(s) Unit: mg/l Analytical monitoring: no LC50: = 545 Limit Test: no Method: GLP: Test substance: Remark: Result: Test condition: Reliability: 94 other: see Test Condition no other TS: ammonium sulfate, not further specified Cited as ppm (1 ppm was converted to 1 mg/L) No mortality occurred in controls. dissolved oxygen in all the tanks was above 5 mg/L and the pH varied from 7.5 to 7.6. No mortality occurred within 96 hours test period at 400 ppm ammonium sulfate. However, concentrations higher than these were found to be toxic. Fishes were kept in the laboratory at room temperature for a fortnight. Eight to ten fishes measuring about 4.5 cm in length were used in each container. Replicate 96-hour static bioassays were conducted in fresh water using five different concentrations and two controls were run simultaneously. Observations were made at 24, 48, 72, and 96 hours after the beginning of the test. Experiments were carried out at a controlled temperature of 28 deg C +/- 1 deg C. During the experiments, dissolved oxygen, pH, nitrite and nitrate were determined using standard procedures. LC50 values were estimated by plotting the percentage mortality at 24- and 48-hours for each concentration and reading the estimated concentraiton lethal to 50% of the fish from the graph. Year of study: not reported. (2) valid with restrictions limited documentation UNEP PUBLICATIONS
OECD SIDS AMMONIUM SULFATE 4. ECOTOXICITY ID: 7783-20-2 DATE: 18.04.2006 23-JAN-2004 (70) Type: Species: static other: Labeo umbratus (fam. Cyprinidae) Result: Effects on hematological parameters were reported when adult fish were treated with sublethal concentrations (no value reported) of ammonium sulfate for 72 hours. The lethal dose was quoted to be 420 mg/L, a concentration at which mortality ocurred within 4 hours. Sublethal doses caused statistical significant changes such as an increase in the number of white blood cells dimension, and a decrease in MCV, and average corpuscular hemoglobin (ACH) when compared to controls. Other parameters such as hematocrit, number of red blood cells, hemoglobin and total plasma proteins were decreased and MCHC increased, however without statistical significance. Reliability: (2) valid with restrictions 26-JAN-2004 (71) Species: other: Tilapia mossambica Exposure period: 192 hour(s) Method: GLP: Test substance: other: see Test Condition no data other TS: ammonium sulfate, commercial grade Result: At 26 and 30°C a significant decrease in feeding rate was observed at concentrations >100 ppm. No effect on feeding rate was noted at a temperature of 20°C. Test condition: Fish from local hatcheries. Tests were run at 3 different temperatures: 20, 26, and 30°C in November/December, February/March and June/July, respectively. Two fish per aquarium and eight fish per concentration were exposed to three temperature conditions separately. Live earthworm were cut into pieces and placed into each aquarium every 24 hours and any uneaten food was removed at the same time. The number of pieces consumed by fish were observed and recorded. Tests were run for 192 hours. Nine concentrations of ammonium sulfate were used (10, 20, 40, 60, 80, 100, 120, 140, 160 ppm). Reliability: (2) valid with restrictions limited documentation 26-JAN-2004 (72) 4.2 Acute Toxicity to Aquatic Invertebrates Type: flow through Species: Daphnia magna (Crustacea) Exposure period: 96 hour(s) Unit: mg/l Analytical monitoring: no LC50 : > 100 Method: GLP: Test substance: other: see Test Conditions no data other TS: ammonium sulfate, reagent-grade, no further details UNEP PUBLICATIONS 95
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OECD SIDS AMMONIUM SULFATE FOREWORD
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OECD SIDS AMMONIUM SULFATE 10. Comm
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OECD SIDS AMMONIUM SULFATE Similarl
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OECD SIDS AMMONIUM SULFATE Consumer
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OECD SIDS AMMONIUM SULFATE 1.3 Phys
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OECD SIDS AMMONIUM SULFATE - in the
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OECD SIDS AMMONIUM SULFATE The inte
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OECD SIDS AMMONIUM SULFATE 228 µg/
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OECD SIDS AMMONIUM SULFATE also an
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OECD SIDS AMMONIUM SULFATE 3.1.3 Ir
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OECD SIDS AMMONIUM SULFATE A simila
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OECD SIDS AMMONIUM SULFATE diarrhoe
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OECD SIDS AMMONIUM SULFATE 3.1.8 To
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OECD SIDS AMMONIUM SULFATE oral exp
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OECD SIDS AMMONIUM SULFATE Table 3
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OECD SIDS AMMONIUM SULFATE No test
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OECD SIDS AMMONIUM SULFATE freshwat
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OECD SIDS AMMONIUM SULFATE Toxicity
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OECD SIDS AMMONIUM SULFATE Table 7
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OECD SIDS AMMONIUM SULFATE 6 REFERE
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OECD SIDS AMMONIUM SULFATE Gmelin (
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OECD SIDS AMMONIUM SULFATE 6. REFER
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AMMONIUM SULFATE CAS NÂ°: 7783-20-2

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