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EC number: 695-878-0 | CAS number: 1283129-18-9
- 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:
- 7 July - 12 September 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320-1
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Specific details on test material used for the study:
- - Batch n°: I15AB0305
- Analytical purity: 99.7% (based on LC)
- Expiration date: 23 January 2017
- Storage condition: at room temperature - Mass median aerodynamic diameter:
- 22.131 µm
- Geometric standard deviation:
- >= 2.665 - <= 2.759
- Percentile:
- D10
- Mean:
- 5.061 µm
- St. dev.:
- 0.105
- Remarks on result:
- other: Average result is calculated from the entirety of data captured in each run and is not a simple arithmetic mean.
- Key result
- Percentile:
- D50
- Mean:
- 20.287 µm
- St. dev.:
- 0.17
- Remarks on result:
- other: Average result is calculated from the entirety of data captured in each run and is not a simple arithmetic mean.
- Percentile:
- D90
- Mean:
- 57.824 µm
- St. dev.:
- 0.269
- Remarks on result:
- other: Average result is calculated from the entirety of data captured in each run and is not a simple arithmetic mean.
- Conclusions:
- Visual examination at 100x magnification showed irregular shaped crystals with needles and fibres between approximately 3µm and 192µm.
The particle size distribution of T003422 determined by the laser diffraction method led to the conclusion that the average volume weighted mean based on 5 runs was 27.283µm and the Mass Median Aerodynamic Diameter (MMAD) based on 5 runs was 22.131µm, whereas the average D10, D50 and the D90 were determined to be 5.061µm, 20.287µm and 57.824µm, respectively.
Reference
Visual Microscope Analysis
(1) Standard visual observation: sample observed to be a medium to fine white powder with lumps and clusters. Some of the clusters were found to be > 2000μm
(2) 100x magnification: particles appeared to be irregular shaped crystals with needles and fibres. Some agglomerations were observed. The smallest individual particle size was approximately 3μm and the largest individual size was approximately 192μm.
(3) 400x magnification: The sample was observed to be made up of single crystalline particles.
Laser Diffraction Particle Size Analysis
Using the identified parameters, the particle size was analysed over the range 0.02 μm to 2000 μm.
The average Volume weighted Mean was 27.283µm and the mode was 22.610µm. The Coefficient of Variation for d50 was <3%; d10 and d90 were <5%. Thus the repeatability of the characteristic particles in the size distribution was within the acceptable limits according to the ISO 13320-1 test standard.
Description of key information
The particle size distribution of T003422 was determined by the laser diffraction method in a GLP study according to the methods ISO 13320:2009 and CIPAC MT 187 (Livingston, 2016). The visual examination at 100x magnification showed irregular crystals with needles and fibres of dimensions between 3 µm and 192 µm approximately. The MMAD (mass median aerodynamic diameter) was determined to be 22.131 µm, whereas the average D10, D50 and the D90 were determined to be 5.061µm, 20.287µm and 57.824µm, respectively.
Additional information
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