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EC number: 257-479-6 | CAS number: 51858-17-4
- 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
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Version / remarks:
- 1981
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- 2009
- GLP compliance:
- not specified
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Dipotassium dihydrogen 4-[5-[3-carboxylato-5-hydroxy-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl]penta-2,4-dienylidene]-4,5-dihydro-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate
- EC Number:
- 257-479-6
- EC Name:
- Dipotassium dihydrogen 4-[5-[3-carboxylato-5-hydroxy-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl]penta-2,4-dienylidene]-4,5-dihydro-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate
- Cas Number:
- 51858-17-4
- Molecular formula:
- C25H16N4O12S2.2K
- IUPAC Name:
- dipotassium dihydrogen 4-{5-[3-carboxylato-5-oxo-1-(4-sulfonatophenyl)-1,5-dihydro-4H-pyrazol-4-ylidene]penta-1,3-dien-1-yl}-5-hydroxy-1-(4-sulfonatophenyl)-1H-pyrazole-3-carboxylate
- Test material form:
- solid: crystalline
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- 1.4 µm
- Remarks on result:
- other: after separation of oversize part of the sample (> 2000 µm) of 64.1%
- Key result
- Percentile:
- D50
- Mean:
- 5.6 µm
- Remarks on result:
- other: after separation of oversize part of the sample (> 2000 µm) of 64.1%
- Key result
- Percentile:
- D90
- Mean:
- 348.6 µm
- Remarks on result:
- other: after separation of oversize part of the sample (> 2000 µm) of 64.1%
Any other information on results incl. tables
The test item contains a coarse fraction with particle sizes > 2000 µm of 64.1 % (w/w) and a fine fraction with particle sizes < 2000 µm of 35.9 % (w/w).
Two test series of three measurements each were performed with the fine fraction of the test item. The results are shown in the below table:
|
Test series 1 [μm] |
Test series 2 [μm] |
Average [μm] |
D10 |
1.4 |
1.4 |
1.4 |
D50 |
5.6 |
5.6 |
5.6 |
D90 |
350.1 |
347.1 |
348.6 |
The 90%, 50% and 10% mean cumulative size distributions were found to be 348.6 μm, 5.6 μm
and 1.4 μm, respectively.
Applicant's summary and conclusion
- Conclusions:
- The test item contains a coarse fraction with particle sizes >2000 μm of 64.1 % and a fine fraction with particle sizes <2000 μm of 35.9 %.
The fine fraction of test item has a median particle size D50 = 6 μm, which was determined by laser diffraction measurement.
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