AMMONIUM SULFATE CAS N°: 7783-20-2

OECD SIDS
AMMONIUM SULFATE
4. ECOTOXICITY ID: 7783-20-2
DATE: 18.04.2006
Limit Test:
no
Method:
other: see Test Condition
GLP:
no data
Test substance: other TS: commercial grade ammonium sulphate containing 20.6%
nitrogen.
Remark: Inconsistent information in test methodology described -
between the number of animals per vessel and the total
number of animals used in the test - for a valid testing
regime.
Result:
An LC50 value of 154 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. 96 hour tests were carried
out for insects and molluscs. Test temperatures were 22.0 +
1.1 °C and 32.5 + 1.3 °C. 800 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: Viviparous bengalensis (mussel)
Exposure period: 96 hour(s)
Unit: mg/l Analytical monitoring: no
Limit Test: no
Method:
other: Test Conditions
GLP:
no data
Test substance: other TS: commercial grade ammonium sulphate containing 20.6%
nitrogen.
Result:
Test condition:
An LC50 value of 248 mg/L (converted from 248 ppm) was
observed at 22.0 °C.
An LC50 value of 77 mg/L (converted from 77 ppm) was
observed at 32.5 °C.
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).
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