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EC number: 690-512-6 | CAS number: 1271172-98-5
- 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 aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted to OECD guidelines and GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.2 (Acute Toxicity for Daphnia)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 6341 (Water quality - Determination of the Inhibition of the Mobility of Daphnia magna Straus (Cladocera, Crustacea))
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Reaction products of 1,3,5-triazine-2,4,6-triamine and zinc bis(dihydrogen phosphate)
- EC Number:
- 690-512-6
- Cas Number:
- 1271172-98-5
- Molecular formula:
- Zn(C3H7N6)2(P2O7)
- IUPAC Name:
- Reaction products of 1,3,5-triazine-2,4,6-triamine and zinc bis(dihydrogen phosphate)
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- Main test:
- Concentrations: 0, 10, 18, 32, 56 and 100 mg/L (nominal).
- Frequency: Samples for analysis were taken from each concentration and the control at 0 and 48 hours (start and end of study).
- Sampling method: To each sample, 100 uL KCl (10% in water) and 100 uL HCl conc. were added. For the concentration of 10 and 18 mg/L and the control the mixture was filled up to 10 mL with test solution and control medium respectivey. For the concentration 100 mg/L, 56 mg/L and 32 mg/L a dilution ratio of 1:10 1:5 and 1:2 respectively was used.
- Sample storage conditions before analysis: Not detailed, but assumed to be analysed on the day of sampling.
Test solutions
- Vehicle:
- yes
- Details on test solutions:
- A saturated solution of test material was prepared by weighing nominal loading rates, adding the corresponding amount of water with subsequent vigorous shaking for 24 hours. The resulting saturated solutions were then filtered using 0.45 uM filters. The technique essentially provided a water solubel fraction of nominal loading rates, further characterised by chemical analysis.
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Common name: Daphnia magna straus
- Strain: Berlin
- Source: Umweltbundesamt Berlin
- Age at study initiation: < 24 hours old
- Method of breeding: Parthenogenesis
- Feeding during test: None
ACCLIMATION
- Acclimation period: Daphnia magna were maintained continuously for acute toxicity tests
- Acclimation conditions (same as test or not): Same as test (except no light in tests)
- Type and amount of food: Unicellular green algae (Desmodesmus Subspicatus)
- Health during acclimation (any mortality observed): Neonate Daphnia were allowed a 30 minute settling in period before addition to test media. Animals which showed apparent damage were not used for tests.
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
Test conditions
- Hardness:
- Hardness of dilution water was measured as 250 mg CaCO3/L
- Test temperature:
- 18.1 to 18.4°C
- pH:
- 6.7 to 7.6
- Dissolved oxygen:
- The concentration of dissolved oxygen stayed above 8.1 mg/L throughout the test
- Nominal and measured concentrations:
- Nominal: 0, 10, 18, 32, 56 and 100 mg/L
Measured (calculated from experimentally determined Zn value based on the known composition; geometric mean of 24 and 48 hour results): 4.4, 8.1, 13.6, 24.4 and 42.3 mg/L. - Details on test conditions:
- TEST SYSTEM
- Test vessel: Glass beakers
- Type: open
- Material, size, headspace, fill volume: 50 mL (tall shape) and filled with 20 mL control or test media.
- Aeration: None
- No. of organisms per vessel: 5
- No. of vessels per concentration (replicates): 4
- No. of vessels per control (replicates): 4
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: Elendt M4, reconstituted water (including appropriate vitamins).
- Intervals of water quality measurement: Daily for temperature, and at 0 and 48 hours for pH and oxygen concentration.
OTHER TEST CONDITIONS
- Photoperiod: No light (test conducted in darkness)
EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : Immobility at 24 and 48 hours
TEST CONCENTRATIONS
- Spacing factor for test concentrations: ca. 1.8
- Test concentrations: 0, 10, 18, 32, 56 and 100 mg/L - Reference substance (positive control):
- yes
- Remarks:
- potassium dichromate
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 42 mg/L
- Nominal / measured:
- meas. (geom. mean)
- Conc. based on:
- element
- Remarks:
- ;calculated based on measure Zn content (Zn content in test material known)
- Basis for effect:
- mobility
- Remarks on result:
- other: Greater than limit of solubility
- Duration:
- 48 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 24 mg/L
- Nominal / measured:
- meas. (geom. mean)
- Conc. based on:
- element
- Remarks:
- ;calculated based on measured Zn content (Zn content in test material known)
- Basis for effect:
- mobility
- Remarks on result:
- other: Not determinable
- Details on results:
- - The EC50 value exceeded solubility of substance in test medium: Due to the low solubility of the test substance, concentration levels that would provide an EC50 value to Daphnia could not be reached. The effect concentration is greater than the limit of solubility (> 42 mg/L).
As effects were observed at a nominal concentration of 100 mg/L (measured ca. 42 mg/L), the NOEC was determined to be 56 mg/L (measured ca. 24 mg/L). - Results with reference substance (positive control):
- - Results with reference substance valid? Yes
- EC50: 1.7 mg/L. Within historical range.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The geometric mean exposure concentration for samples taken over the 48 hour period was 42.3 mg/L (based on Zn analysis).
No immobility or abnormal behaviour was noted at any point in control vessels. In test vessels, 45% immobility was observed at measured concentrations of 42.3 mg/L. The concentration causing 50% immobility could not be determined and was detailed as > 42 mg/L.
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