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Diss Factsheets
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EC number: 476-280-7 | CAS number: 109113-72-6
- 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:
- 2016-09-01 to 2016-10-25
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 170
- Deviations:
- no
- Principles of method if other than guideline:
- In preliminary tests, the test item tended to form lumps and a particle size determination using Laser diffraction instrument according to CIPAC MT 187 would not deliver representative results. Thus the CIPAC MT 170 was used.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- No.:
- #1
- Size:
- >= 50 µm
- Distribution:
- 0.02 %
- No.:
- #2
- Size:
- >= 75 µm
- Distribution:
- 0.05 %
- No.:
- #3
- Size:
- >= 100 µm
- Distribution:
- 0.05 %
- No.:
- #4
- Size:
- >= 125 µm
- Distribution:
- 0.08 %
- No.:
- #5
- Size:
- >= 150 µm
- Distribution:
- 1.28 %
- No.:
- #6
- Size:
- >= 250 µm
- Distribution:
- 17.18 %
- No.:
- #7
- Size:
- >= 500 µm
- Distribution:
- 41.48 %
- No.:
- #8
- Size:
- >= 1 000 µm
- Distribution:
- 37.2 %
- No.:
- #9
- Size:
- >= 2 000 µm
- Distribution:
- 1.89 %
- Conclusions:
- The particle size distribution was specified by two sieves in the range of 250µm (Rx >= 90%) and 2000µm (Rx <= 10%).
The retained material on the 100µm sieve was 0.3 g (0.05%), the retained material on the 75µm sieve was 0.03g (0.05%), the retained material on the 50µm sieve was 0.01g (0.02%) and the retained material on the pan was 0.01g (0.02%).
99.93% of the material was found to have particle size >= 100µm.
According to the ECHA guidance IR/CSA R.7c, p. 170 -171 dust is categorized in inhalable dust MMAD 50 -100 µm, dust having the potential to reach the thoracic region MMAD 50 -15 µm, and dust with MMAD <15 µm has the potential to reach alveolar region.
Based on the result of the particle size for the test item 0.12 % of the particles are categorized as inhalable dust (50 -100 µm) and 0.02% < 50 µm.
Reference
The particle size distribution was specified by two sieves in the range of 250µm (Rx >= 90%) and 2000µm (Rx <= 10%).
The retained material on the 75µm sieve was 0.03g (0.05%), the retained material on the 50µm sieve was 0.01g (0.02%) and the retained material on the pan was 0.01g (0.02%). 99.93% of the material was found to have particle size >= 100µm.
sieve x µm |
test 1 | test 2 | mean | ||
mass gx [g] |
mass gx [g] |
mass gx [g] |
residue rx [%] |
sum Rx [%] |
|
pan | 0.01 | 0.01 | 0.01 | 0.02 | 100.02 |
50 | 0.01 | 0.01 | 0.01 | 0.02 | 100.00 |
75 | 0.04 | 0.01 | 0.03 | 0.05 | 99.98 |
100 | 0.05 | 0.01 | 0.03 | 0.05 | 99.93 |
125 | 0.10 | 0.00 | 0.05 | 0.08 | 99.88 |
150 | 1.07 | 0.57 | 0.82 | 1.28 | 99.80 |
250 | 10.16 | 11.77 | 10.97 | 17.18 | 98.52 |
500 | 27.36 | 25.61 | 26.49 | 41.48 | 81.34 |
1000 | 23.51 | 24.00 | 23.76 | 37.20 | 39.86 |
2000 | 1.12 | 1.29 | 1.21 | 1.89 | 2.66 |
3350 | 0.47 | 0.49 | 0.48 | 0.75 | 0.77 |
5000 | 0.02 | 0.00 | 0.01 | 0.02 | 0.02 |
Description of key information
In the preliminary tests using a laser diffraction instruments, the test results were disregarded given the test material tended to form lumps.
99.93% of the material was found to have particle size >= 100µm. The retained material on the 100µm sieve was 0.3 g (0.05%, the retained material on the 75µm sieve was 0.03g (0.05%), the retained material on the 50µm sieve was 0.01g (0.02%) and the retained material on the pan was 0.01g (0.02%) by dry sieve analysis according to CIPC MT 170 method.
Additional information
According to the ECHA guidance IR/CSA R.7c, p. 170 -171 dust is categorized in inhalable dust MMAD 50 -100 µm, dust having the potential to reach the thoracic region MMAD 50 -15 µm, and dust with MMAD <15 µm having the potential to reach alveolar region.
Based on the results of the particle size for the test item (using dry sieve analysis) 99.93% of the material was found to have particle size >= 100µm, 0.12 % of the particles are categorized as inhalable dust (50 -100 µm) and 0.02% have a particle size below 50 µm, thus a dustiness category of solid 'medium' is assigned in Chesar in accordance with to the ECETOC TRA No. 93, appendix C in a worst case scenario.
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