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Diss Factsheets
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EC number: 910-356-7 | CAS number: -
- 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
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-02-14
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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:
- adopted May 1981
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 66165 part 1 and 2: Sieving analysis
- Version / remarks:
- 2016-08
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Guidance on information requirements and chemical safety assessment, Chapter R.7a: Endpoint specific guidance, European Chemicals Agency
- Version / remarks:
- version 4.1, October 2015
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- The test item was tested as received. No further preliminary treatment such as drying or milling was performed.
- Remarks on result:
- not determinable
- Remarks:
- Due to the large size of the particles (99.54% by mass >500 µm by sieving), sieving was the method chosen. No MMAD can be determined from sieving - however, based on the large particle size there will be no relevant inhalable fraction.
- Key result
- Percentile:
- D10
- Mean:
- 1 100 µm
- Remarks on result:
- other: Range of particle size for mesh size 1000 µm: 1000 µm to 1250 µm
- Percentile:
- D50
- Mean:
- 1 300 µm
- Remarks on result:
- other: Range of particle size for mesh size 1250 µm: 1250 µm to 1400 µm
- Percentile:
- D90
- Mean:
- 1 500 µm
- Remarks on result:
- other: Range of particle size for mesh size 1400 µm: 1400 µm to 1600 µm
- Conclusions:
- Due to the large size of the particles (99.54% by mass >500 µm by sieving), sieving was the method chosen. No MMAD can be determined from sieving - however, based on the large particle size there will be no relevant inhalable fraction:
D50 = 1300 µm
D10 = 1100 µm
D90 = 1500 µm - Executive summary:
The particle size distribution was determined for the submission substance according to OECD 110 and DIN 66165 part 1 and 2: Sieving analysis, under consideration of ECHA guidance document R.7a. The test item consisted of granules (approximately 1 to 2 mm in diameter). Due to the size of the granules the particle size distribution was determined by dry sieving. No MMAD can be determined from sieving - however, based on the large particle size there will be no relevant inhalable fraction.
The percentiles of the particle size distribution were estimated from cumulative plotting of the size fraction (by mass) against the mesh size (µm) on the abscissa.
The particle size D50estimated from this measurement was:
D50= 1300 µm
The particle size D10estimated from this measurement was:
D10= 1100 µm
The particle size D90estimated from this measurement was:
D90= 1500 µm
Reference
The test item consisted of granules (approximately 1 to 2 mm in diameter). Due to the size of the granules the particle size distribution was determined by dry sieving.
242.08 g of the test item were placed on the top sieve. After closing the sieve stack and placing it into the sieving machine sieving was performed for 5 min with amplitude of 1.5 mm. The particle size is shown in the following table:
Mesh size |
Range of particle size |
Fraction |
Total |
Fraction |
Total |
µm |
µm |
g |
g |
% |
% |
2000 |
> 2000 |
0.00 |
0.00 |
0.00 |
0.00 |
1700 |
1700 – 2000 |
0.05 |
0.05 |
0.02 |
0.02 |
1600 |
1600 – 1700 |
1.90 |
1.95 |
0.78 |
0.81 |
1400 |
1400 – 1600 |
54.43 |
56.38 |
22.48 |
23.29 |
1250 |
1250 – 1400 |
125.87 |
182.25 |
52.00 |
75.29 |
1000 |
1000 – 1250 |
56.79 |
239.04 |
23.46 |
98.74 |
800 |
800 – 1000 |
1.62 |
240.66 |
0.67 |
99.41 |
500 |
500 – 800 |
0.31 |
240.97 |
0.13 |
99.54 |
300 |
300 – 500 |
0.11 |
241.08 |
0.05 |
99.59 |
250 |
250 - 300 |
0.08 |
241.16 |
0.03 |
99.62 |
Receiver pan |
0 – 250 |
0.92 |
242.08 |
0.38 |
100.00 |
The percentiles of the particle size distribution were estimated from cumulative plotting of the size fraction (by mass) given in the table above against the mesh size (µm) on the abscissa.
The particle size D50estimated from this measurement was:
D50= 1300 µm
The particle size D10estimated from this measurement was:
D10= 1100 µm
The particle size D90estimated from this measurement was:
D90= 1500 µm
Description of key information
Due to the large size of the particles (99.54% by mass >500 µm by sieving), sieving was the method chosen (OECD 110, DIN66165 part 1 and 2: sieving analysis; RL1, 2017). No MMAD can be determined from sieving - however, based on the large particle size there will be no relevant inhalable fraction:
D50 = 1300 µm
D10 = 1100 µm
D90 = 1500 µm
Additional information
The particle size distribution was determined for the submission substance according to OECD 110 and DIN 66165 part 1 and 2: Sieving analysis, under consideration of ECHA guidance document R.7a. The test item consisted of granules (approximately 1 to 2 mm in diameter). Due to the size of the granules the particle size distribution was determined by dry sieving. No MMAD can be determined from sieving - however, based on the large particle size there will be no relevant inhalable fraction.
The percentiles of the particle size distribution were estimated from cumulative plotting of the size fraction (by mass) against the mesh size (µm) on the abscissa.
The particle size D50estimated from this measurement was:
D50= 1300 µm
The particle size D10estimated from this measurement was:
D10= 1100 µm
The particle size D90estimated from this measurement was:
D90= 1500 µm
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