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Diss Factsheets
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EC number: 204-611-5 | CAS number: 123-23-9
- 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
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:
- 2018-03
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 2591-1, Test sieving – Part 1: Methods using test sieves of woven wire cloth and perforated metal plate
- Version / remarks:
- December 1988
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 3310-1, Test sieves – Technical requirements and testing – Part 1: Test sieves of metal wire cloth
- Version / remarks:
- July 1990
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: SMA 721.02, Determination of the particle size distribution of powders and granular products
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: SMA 743.02, Distribution of powders and granulated products in representative portions
- Version / remarks:
- August 1993
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: DRAFT EUR 20268 EN - Guidance document on the determination of particle size distribution, fiber length and diameter distribution of chemical substances
- Version / remarks:
- 2002
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- Test performed in accordance with Internal Management System.
- Type of method:
- microscopic examination
- Remarks:
- light microscopic examination
- Type of particle tested:
- agglomerate
- Type of distribution:
- other: sieving method
- No.:
- #1
- Size:
- < 100 µm
- Distribution:
- 0 %
- No.:
- #2
- Size:
- > 100 µm
- Distribution:
- 100 %
- Conclusions:
- It was determined that the test item has no particles with size <100 µm. 100 % of the particles were with size >100 µm.
- Executive summary:
A study according to ISO 2591-1, ISO 3310-1, SMA 743.02 and Draft EUR 20268 EN was perfoemd to determined the particle size of the test item. The test item was tested in its initial form. Using light microscopic examination a picture of the test item was taken. The picture showed that particles smaller than 100 µm were present. Therefore, sieving was perfomed. Using a sieve with 100 µm size, the test item was sieved for 10 minutes at 1.00 mm amplitude. After the sieving it was determined that 100 % of the particles had a size above 100 µm. As <1%m/m particles passed the sieve, no particle size distribution (PSD) was perfomed. The light miscroscopic examination revealed that the shape of the test item is non-fibrous.
Reference
Light microscopic examinations
Pictures of the sample were taken with the Stemi 2000-c microscope assembled with an AxioCam ICc 3 digital camera. The picture showed that particles < 100 µm are present. Therefore, sieving was performed.
Sieving
It was determined that virtually no particles (< 1%m/m) passed the sieve. Consequentlly, no particle distribution distribution (PSD) was determined. The shape of the test item was determined to be non-fibrous.
Table 1. Sieve results 100 µm sieve
Fraction |
Amount |
|
[g] |
[%] |
|
< 100 µm |
0.00 |
0.00 |
> 100 µm |
96.79 |
100.0 |
Description of key information
It was determined that the test item has no particles with size <100 µm. 100 % of the particles were with size >100 µm.
Additional information
A study according to ISO 2591-1, ISO 3310-1, SMA 743.02 and Draft EUR 20268 EN was perfoemd to determined the particle size of the test item. The test item was tested in its initial form. Using light microscopic examination a picture of the test item was taken. The picture showed that particles smaller than 100 µm were present. Therefore, sieving was perfomed. Using a sieve with 100 µm size, the test item was sieved for 10 minutes at 1.00 mm amplitude. After the sieving it was determined that 100 % of the particles had a size above 100 µm. As <1%m/m particles passed the sieve, no particle size distribution (PSD) was perfomed. The light miscroscopic examination revealed that the shape of the test item is non-fibrous.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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