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EC number: 267-744-8 | CAS number: 67914-60-7
- 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:
- 5 July 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°: I15FB3131
- Analytical purity: 100% (based on base titration)
- Expiration date: 11 June 2017
- Storage condition: at room temperature - Mass median aerodynamic diameter:
- 597.669 µm
- Geometric standard deviation:
- >= 1.776 - <= 1.815
- Percentile:
- D10
- Mean:
- 238.427 µm
- St. dev.:
- 4.581
- 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:
- 520.204 µm
- St. dev.:
- 3.859
- 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:
- 968.907 µm
- St. dev.:
- 5.094
- 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 the sample to be irregular shaped crystals between approximately 3µm and 832µm.
The particle size distribution of T001141 determined by the laser diffraction method led to the conclusion that the average volume weighted mean based on 5 runs was 564.395 µm and the Mass Median Aerodynamic Diameter (MMAD) based on 5 runs was 597.669µm, whereas the average D10, D50 and the D90 were determined to be 238.427 µm, 520.204µm and 968.907µm, respectively.
Reference
Visual Microscope Analysis
(1) Standard visual observation: sample observed to be a polydispersed, gritty, free flowing white powder.
(2) 100x magnification: particles appeared to be irregular shaped crystals. The smallest individual particle size was approximately 3 μm and the largest individual size was approximately 832 μm.
(3) 400x magnification: 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 0.02μm to 2000μm.
The average Volume weighted Mean was 564.395µm and the mode was 560.459µm. 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 T001141 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 of dimensions between 3 µm and 832µm approximately. The MMAD (mass median aerodynamic diameter) was determined to be 597.669µm, whereas the average D10, D50 and the D90 were determined to be 238.427 µm, 520.204 µm and 968.907 µm, respectively.
Additional information
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