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EC number: 232-235-1 | CAS number: 7790-98-9
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Short-term toxicity to fish
Administrative data
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 28 May 2010 to 26 August 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: compliant to GLP and testing guideline (the deviation observed was not considered to have compromised the validity of the study and results); adequate coherence between data, comments and conclusions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 203 (Fish, Acute Toxicity Test)
- Deviations:
- yes
- Remarks:
- the temperature was below 13°C at T96 hours of the test
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.1 (Acute Toxicity for Fish)
- Deviations:
- yes
- Remarks:
- as cited above
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Series on testing and assessment, Guidance document on aquatic toxicity testing of difficult substances and mixtures, Number 23, December 2000
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Ammonium perchlorate
- EC Number:
- 232-235-1
- EC Name:
- Ammonium perchlorate
- Cas Number:
- 7790-98-9
- Molecular formula:
- ClHO4.H3N
- IUPAC Name:
- ammonium perchlorate
- Details on test material:
- - Name of test material (as cited in study report): Perchlorate d'Ammonium
- Substance type: monoconstituent
- Physical state: white powder
- Analytical purity: 99.9%
- Purity test date: 15 March 2010
- Lot/batch No.: A001/10
- Expiration date of the lot/batch: 31 January 2015
- Storage condition of test material: at room temperature and protected from humidity
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- Sample frequency:
Samples were taken in the fresh solutions (i.e. at the start of the test and at each solution change), just before distribution in aquariums from the preparation containers.
Samples were also be taken in the old solutions (i.e. at each solution change and at the end of the test) in each aquarium directly.
Combined range finding and limit test:
Two samples of 5 mL were taken in the limit test solution (100 mg/L) and in the test solutions at 500 mg/L and 200 mg/L.
As the test item was not found to be toxic at 200 and 100 mg/L nominal, chemical analysis was undertaken to measure the concentration of the test item in this solution.
Samples preparation:
- Test solution (100 mg/L)
To achieve a target concentration of 0.8 mg/L of Perchlorate d’Ammonium, an aliquot (0.8 mL) of each test item solution was sampled into a 100-mL volumetric flask and each flask was completed to volume with diluent before injection.
Stability period/storage condition: 6 days of storage at -20°C.
- Test dosage forms (200 mg/L)
An aliquot (1 mL) of each test item solution was sampled under into a 100-mL volumetric flask and each flask was completed to volume with diluent. To achieve a target concentration of 0.8 mg/L of Perchlorate d’Ammonium, an additional dilution, 0.8 mL of previous solution with 1.2 mL of diluent, was carried out before injection.
Stability period/storage condition: 6 days of storage at -20°C.
From the aliquot of dosage form sampled (weighed accurately), the real volume of the aliquot analyzed was determined (using the density of each dosage form) and therefore the value of the first dilution factor was calculated.
Test solutions
- Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
The stock solutions, for the combined range finding and limit test were prepared by dissolving the test item directly in test medium (see § "Conditions of housing").
The conditions of preparation of the stock solutions are reported in the following table:
Quantity of test item Volume of test water Concentration of the Duration of the agitation (mg) (mL) test item (mg/L) (minutes)
Combined range 6000 12000 500 5
finding and limit 2500 5000 500 5
test
After agitation, the stock solutions were used to prepare the test solutions.
Test solutions were prepared by further dilution of the stock solution with test medium to provide a geometric series of concentrations:
- 0.14, 1.4, 14, 100, 200 and 500 mg/L for the combined range finding and limit test.
The pH range considered as appropriate for a normal life of test organisms is circa 6 to 9.
The pH of all test solutions remained within the range 6.0 +/- 0.2 to 9.0 +/- 0.2 after preparation and there was therefore no adjustment of pH before incorporation of the animals.
Fishes were placed in test vessels which were gently filled with the test solutions after their preparation. The same vessels were used throughout the test. Solutions were changed every 24 hours over the 96-hour test period.
Test organisms
- Test organisms (species):
- Oncorhynchus mykiss (previous name: Salmo gairdneri)
- Details on test organisms:
- TEST ORGANISM
- Common name: rainbow trout
- Source: Pisciculture des godeliers, 27210 Le Torp, France
- Length at study initiation (length definition, mean, range and SD): from 40 to 60 mm long
- Feeding during test: none
ACCLIMATION
- Acclimation period: at least 12 days before the start of the test
- Acclimation conditions (same as test or not): same as test, except for aeration (dissolved oxygen concentration at or above 80% of the saturation value at the selected temperature, instead of at or above 60% during test)
- Type and amount of food: trout chow
- Feeding frequency: twice daily
- Health during acclimation (any mortality observed): no mortality was recorded
Study design
- Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
Test conditions
- Hardness:
- between 10 to 250 mg/L as CaCO3
- Test temperature:
- between 13°C and 17°C and not ranging by more than ± 2°C
- pH:
- between 6 and 8.5 and did not vary by more than 1 unit in the control
- Dissolved oxygen:
- ≥ 60% of the air saturation value at that temperature
- Salinity:
- Not measured
- Nominal and measured concentrations:
- Measured concentrations in the test solutions (100 and 200 mg/L) were within ± 20% of the corresponding nominal values throughout the test (Table A). Therefore the test item was stable under the experimental conditions and the study results are therefore based on nominal concentrations.
Nominal concentration of 100 mg/L corresponded to measured concentrations of 95.3 mg/L (0 hour), 89.2 mg/L (24 hours), 98.0 mg/L (48 hours), 92.4 mg/L (72 hours) and 94.2 mg/L (96 hours).
Nominal concentration of 200 mg/L corresponded to measured concentrations of 186 mg/L (0 hour), 180 mg/L (24 hours), 195 mg/L (48 hours), 168 mg/L (72 hours) and 195 mg/L (96 hours). - Details on test conditions:
- TEST SYSTEM
- Aeration: dilution water was aerated prior to addition of the test item and forced aeration was used during the test in order to restore the dissolved oxygen concentration ≥ 60% of the air saturation value
- Renewal rate of test solution (frequency/flow rate): 24 hours after beginning of the test
- No. of organisms per vessel: 2 groups of 7 fishes (limit test) and 3 groups of 5 fishes and 2 groups of 7 fishes (range-finding test)
- Biomass loading rate: loading of 8.1 g/L during the study
OTHER TEST CONDITIONS
- Photoperiod: Light/dark cycle: 16/8 hours
- Adjustment of pH: no
EFFECT PARAMETERS MEASURED (with observation intervals if applicable) :
In all test vessels, animals were inspected for visible abnormalities and mortality at 3, 6, 24, 48, 72 and 96 hours.
At the end of the range finding (for the test solutions at 500 mg/L and 200 mg/L) and limit test, length of fish was measured for all surviving animals after euthanasia. Any animal found dead during the combined range finding and limit at the solutions of 500, 200 and 100 mg/L was also measured before to be removed.
TEST CONCENTRATIONS
- Range finding study: concentrations of 0.14, 1.4, 14, 200 and 500 mg/L
- Test concentrations: no definitive test was performed as no mortality was observed at 100 mg/L (limit test) and the measured concentrations of the test item were within +/- 20% of this nominal value throughout the test - Reference substance (positive control):
- yes
- Remarks:
- potassium dichromate
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 96 h
- Dose descriptor:
- LC100
- Effect conc.:
- 500 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- > 200 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Duration:
- 96 h
- Dose descriptor:
- LC0
- Effect conc.:
- 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Duration:
- 96 h
- Dose descriptor:
- LOEC
- Effect conc.:
- 200 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: sublethal effects
- Duration:
- 96 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: sublethal effects
- Details on results:
- Mortality:
In the limit test, all animals exposed to the limit concentration of 100 mg/L were alive at the end of the test.
In the range-finding test, all animals exposed to the highest test concentration of 500 mg/L were dead within 24 hours of the start of the test.
The mortality in the test solutions at 200 mg/L was 14% at the end of the test.
The mortality at 0.14, 1.4 and 14 mg/L was 0% the end of the test.
Sub-lethal effects:
Sub-lethal effects were observed at 200 and 500 mg/L nominal.
At 200 mg/L sub-lethal effects included abnormally high respiratory rate for all the fish from the T3 hours and a severe loss of equilibrium from T72 hours was also observed for the fish found dead at T96 hours.
At 500 mg/L sub-lethal effects included abnormally high respiratory rate before death.
Any other information on results incl. tables
- Sublethal observations / clinical signs:
Validity criteria:
Three in every four validity criteria of the study were respected for the test:
. the mortality in the control not exceeded one fish at the end of the test,
.constant exposure conditions across all treatments and control,
.measured test concentration was at least 80% of the nominal concentration, and test concentrations are kept within ± 20% of the mean measured concentration during the course of the test,
.the dissolved oxygen concentration remained ≥ 60% of the air saturation value throughout the test in the test solution except for the test solutions at 100 mg/L and 200 mg/L.
However no mortality occurred in the limit test concentration (100 mg/L) and dissolved oxygen concentration dropped only at 54.7 and 54.4 at T23.9 hours for the test solutions at 100 and 200 mg/L respectively and 56.1 and 53.0 at T 47.9 hours for the test solutions at 100 and 200 mg/L respectively. Furthermore no mortality occurred during the period between T0 hours toT47.9 hours when dissolved oxygen concentration was below 60%.
Consequently, as all the others validity criteria were met and as dissolved oxygen concentration did not impact the test, the test was considered valid.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- In a 96-hours semi-static acute toxicity test with Oncorhynchus mykis, the LC50 of the test item Perchlorate d’ammonium was > 200 mg/L.
The NOEC was 100 mg/L. - Executive summary:
Methods
The study included a limit test and a range-finding test (performed simultaneously).
As the test was performed under semi-static, the solutions were changed after 24, 48 and 72 hours.
Four groups of seven fishes (0, 100, 200 and 500 mg/L nominal) and three groups of five fishes (0.14, 1.4 and 14 mg/L nominal) were exposed to the test item dissolved in test water for 96 hours.
Mortality and sub-lethal effects at each concentration were recorded at 0, 3, 6, 24, 48, 72 and 96 hours.
Chemical analysis were undertaken daily to measure the actual concentrationof the test item in the solution prepared at 100 and 200 mg/L nominal.
Results
Validity criteria:
Three in every four validity criteria of the study were respected for the test:
. the mortality in the control not exceeded one fish at the end of the test,
. constant exposure conditions across all treatments and control,
. measured test concentration was at least 80% of the nominal concentration, and test concentrations are kept within ± 20% of the mean measured concentration during the course of the test,
. the dissolved oxygen concentration remained ≥ 60% of the air saturation value throughout the test in the test solution except for the test solutions at 100 mg/L and 200 mg/L.
However no mortality occurred in the limit test concentration (100 mg/L) and dissolved oxygen concentration dropped only at 54.7 and 54.4 at T23.9 hours for the test solutions at 100 and 200 mg/L respectively and 56.1 and 53.0 at T47.9 hours for the test solutions at 100 and 200 mg/L respectively. Furthermore no mortality occurred during the period between T0 hours to T47.9 hours when dissolved oxygen concentration was below 60%.
Consequently, as all the others validity criteria were met and as dissolved oxygen concentration did not impact the test, the test was considered valid.
Chemical analysis:
Measured concentrations in the test solutions(100 and 200 mg/L) were within ± 20% of the corresponding nominal values throughout the test.Therefore the test item was stable under our experimental conditions and the study results can be based on nominal concentrations.
Mortality:
In the limit test, all animals exposed to the limit concentration of 100 mg/L were alive at the end of the test.
In the range-finding test, all animals exposed to the highest test concentration of 500 mg/L were dead within 24 hours of the start of the test.
The mortality in the test solutions at 200 mg/L was 14% at the end of the test.
The mortality at 0.14, 1.4 and 14 mg/L was 0% the end of the test.
Sub-lethal effects:
Sub-lethal effects were observed at 200 and 500 mg/L.
At 200 mg/L sub-lethal effects included abnormally high respiratory rate for all the fish from the T3 hours and a severe loss of equilibrium from T72 hours was also observed for the fish found dead at T96 hours
At 500 mg/L sub-lethal effects included abnormally high respiratory rate before death.
The results and conclusions of the combined range finding and limit tests are summarized in the following tables:
Group
Control
Perchlorate d’ammonium
Concentration
(mg/Lnominal)0
0.14
1.4
14
100
200
500
Effects
Mortality (%) - 24 h
0
0
0
0
0
0
0
Mortality (%) - 48 h
0
0
0
0
0
0
100
Mortality (%) - 72 h
0
0
0
0
0
0
100
Mortality (%) - 96 h
0
0
0
0
0
14
100
Sub-lethal effects (1)
N
N
N
N
N
Y
Y
(1) N: none; Y: observed
Endpoints (mg/L)(1)
24 hours
48 hours
72 hours
96 hours
LC100
500
500
500
500
LC50
>200
>200
>200
>200
LC0
200
200
200
100
LOEC
200
200
200
200
NOEC
100
100
100
100
(1) LC100: lowest concentration tested with 100% mortality; LC50: Median (50%) Lethal Concentration (numbers in brackets correspond to the 95% confidence limits); LC0: highest concentration tested without mortality; NOEC:No Observed Effect Concentration; LOEC: Low Observed Effect Concentration
As no mortality was observed at 100 mg/L and the measured concentrations of the test item werewithin ± 20% of this nominal value throughout the test, the study was considered complete.
Conclusion
In a 96-hours semi-static acute toxicity test with Oncorhynchus mykis, the LC50 of the test item Perchlorate d’ammonium was > 200 mg/L.
The NOEC was 100 mg/L.
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