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EC number: 225-306-3 | CAS number: 4767-03-7
- 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:
- 2009-03-30
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The particle size distribution was analysed by laser diffraction using the instrument Malvern Mastersizer X. Xylene was poured into the dispersing unit, and pumped through the system. It was made sure that no air bubbles were present. A concentrated slurry of the sample in dispersant was made in a beaker by vigorous stirring. Alignment was performed and the background was measured. The sample was added from the slurry into the dispersing unit with a cut-off plastic Pasteur pipette. The sample was adjusted until an acceptable obscuration (15-25%) of the laser beam was obtained.
The dispersion was homogenized after 5 minutes and the particle size distribution was measured. - GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Remarks:
- Instrument: Malvern MastersizerX, Instrument A 2043 Lens: 300 mm Beam length: 2.4 mm Obscuration: 20.8 %
- Type of particle tested:
- other: Slurry of the sample in Xylene as dispersant, prepared by vigorous stirring in a beaker
- Type of distribution:
- volumetric distribution
- Specific details on test material used for the study:
- - Analytical purity: > 98% GC purity
- Lot/batch No.: 581017
- Storage condition of test material: room temperature - Percentile:
- D90
- Mean:
- 135.17 µm
- St. dev.:
- 0
- Remarks on result:
- other: No standard deviation was determined
- Key result
- Percentile:
- D50
- Mean:
- 66.09 µm
- St. dev.:
- 0
- Remarks on result:
- other: No standard deviation was determined
- Percentile:
- D10
- Mean:
- 12.8 µm
- St. dev.:
- 0
- Remarks on result:
- other: No standard deviation was determined
- No.:
- #1
- Size:
- < 10 µm
- Distribution:
- 6.9 %
- No.:
- #2
- Size:
- < 50 µm
- Distribution:
- 37.3 %
- No.:
- #3
- Size:
- < 100 µm
- Distribution:
- 75.4 %
- Conclusions:
- In an experimental study using the laser diffraction method, > 75 % of Bis-MPA particles were determined to have a diameter of less then 100 µm. The D50 is at 66 µm.
- Executive summary:
In an experimental study using the laser diffraction method, > 75 % of Bis-MPA particles were determined to have a diameter of less then 100 µm.
The D50 percentile ist a 66 µm.
Reference
Description of key information
In an experimental study using the laser diffraction method, > 75 % of Bis-MPA particles were determined to have a diameter of less then 100 µm.
The D50 percentile ist a 66 µm.
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