AMMONIUM SULFATE CAS N°: 7783-20-2

OECD SIDS
AMMONIUM SULFATE
4. ECOTOXICITY ID: 7783-20-2
DATE: 18.04.2006
Species:
other: Oreochomis mossambicus (Peters) (order: Cypriniformes)
Exposure period: 96 hour(s)
Unit: mg/l Analytical monitoring: no data
Method:
GLP:
Test substance:
other: see Test Condition
no data
other TS: ammonium sulfate, commercial grade
Result:
LC50 values depended on temperature:
20 deg C: 330 mg/l/96 h
25 deg C: 175 mg/l/96 h
30 deg C: 89.3 mg/l/96 h
35 deg C: 75.5 mg/l/96 h.
At 30 and 25 deg C, fish exhibited adverse clinical signs
when exposed to sublethal concentrations. After 72 hours of
exposure, fish showed erratic swimming movement, rapid
opercular movement, heavy mucus secretion over body, rupture
of buccal epithelium as evidenced by the presence of blood
clots and respiratory distress.
Test condition: Fingerlings of Oreochomis Mossambicus (15 +/- 2.5 g) were
collected from local ponds and acclimated to the laboratory
condition for 7 days. The 96-hour bioassays were performed
in different seasons of the year under four temperautres
(20, 25, 30, and 35 deg C), using well water. two to 4
fishes in each jar and 8 to 16 fishes per concentration were
used. LC50 values were determined by the method of
Litchfield and Wilcoxon. Year of study: not reported.
Reliability: (2) valid with restrictions
limited documentation
23-AUG-2005 (61)
Type:
static
Species:
other: fishes Labeo rohita, Catla catla, Cirrhinus mrigala,
Cyprinus carpio, Tilapia mossambica
Exposure period: 96 hour(s)
Unit: mg/l Analytical monitoring: no
Limit Test: no
Method:
GLP:
Test substance:
Remark:
Result:
other: see Test Condition
no data
other TS: ammonium sulfate, commercial grade
The values are reported in ppm units, und were converted to
mg/L (1 ppm = 1 mg/L).
In the tests with ammonium sulfate the following results
were found for fingerlings:
- L. rohita: LC50 67 mg/L (LC5 20 mg/L, LC95 115 mg/L,
n=72).
- C. catla: LC50 48 mg/L (LC5 0.0015 mg/L, LC95 120 mg/L,
n=84).
- C. mringala: LC50 62 mg/L (LC5 16 mg/L, LC95 109 mg/L,
n=134).
- C. carpio: LC50 141 mg/L (LC5 86 mg/L, LC95 218 mg/L,
n=80).
- T. mossambica: LC50 50 mg/L (LC5 0.009 mg/L, LC95 131
mg/L, n=190)
Hatchlings were more susceptible to ammonium sulfate than
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