AMMONIUM SULFATE CAS N°: 7783-20-2

OECD SIDS
AMMONIUM SULFATE
4. ECOTOXICITY ID: 7783-20-2
DATE: 18.04.2006
animals were kept per vessel, and four replicates of each
test were conducted, along with controls. Bioassays were
conducted after the method of APHA, AWWA, and WPCF (1971):
Standard method for the examination of water and wastewater,
13th Ed. APHA Inc, New York, 874. 72 hour tests were carried
out for zooplankton. Test temperatures were 22.0 + 1.1 °C
and 32.5 + 1.3 °C. 1600 organisms were used in this test, a
similar test using another substance, and the controls. The
LC50 and LC 95 values were determined by probit analysis.
Reliability: (4) not assignable
Documentation insufficient for assessment. pH not measured.
Ammonium sulfate fertiliser characterisation is very
limited. Concentrations not measured. Number of
concentrations used and nominal concentration values not
stated. Limited documentation of results.
22-MAY-2003 (78)
Type:
static
Species:
other: Diaptomus sp. (Zooplankton)
Exposure period: 72 hour(s)
Unit: mg/l Analytical monitoring: no
Limit Test: no
Method:
other: see Test Condition
GLP:
no data
Test substance: other TS: commercial grade ammonium sulphate containing 20.6%
nitrogen
Result:
An LC50 value of 151 ppm was observed at 22.0 °C.
An LC50 value of 45 ppm was observed at 32.5 °C.
Test condition: TEST ORGANISMS: Test organisms were collected from local
ponds and acclimated to laboratory conditions for 10 to 96
hours.
TEST VESSEL: 500 ml glass beakers containing unchlorinated
borehole water (pH 7.5; DO 7.6 ppm; total alkalinity 190 ppm
as CaCO3; ammonia nitrogen 0.05ppm)
TEST METHODOLOGY: Twenty animals were kept per vessel, and
four replicates of each test were conducted, along with
controls. Bioassays were conducted after the method of APHA,
AWWA, and WPCF (1971): Standard method for the examination
of water and wastewater, 13th Ed. APHA Inc, New York, 874.
72 hour tests were carried out for zooplankton. Test
temperatures were 22.0 + 1.1 °C and 32.5 + 1.3 °C. 1800
organisms were used in this test, a similar test using
another substance, and the controls. The LC50 and LC 95
values were determined by probit analysis.
Reliability: (4) not assignable
Documentation insufficient for assessment. pH not measured.
Ammonium sulfate fertiliser characterisation is very
limited. Concentrations not measured. Number of
concentrations used and nominal concentration values not
stated.Limited documentation of results.
18-MAY-2003 (78)
Type:
static
Species:
other: Dragon fly nymph (aquatic insect)
Exposure period: 96 hour(s)
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