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EC number: 256-296-9 | CAS number: 47107-74-4
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:
- 01/2008 to 10/2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- sedimentation (gravitational settling)
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- Name: lodo(triphenylphosphino)copper
Batch No.: 07112301
Appearance: white powder - No.:
- #1
- Size:
- ca. 5.52 µm
- Distribution:
- 0 %
- No.:
- #2
- Size:
- ca. 6.1 µm
- Distribution:
- 2.83 %
- No.:
- #3
- Size:
- ca. 6.9 µm
- Distribution:
- 8.96 %
- No.:
- #4
- Size:
- ca. 7.73 µm
- Distribution:
- 18.31 %
- No.:
- #5
- Size:
- ca. 8.54 µm
- Distribution:
- 25.16 %
- No.:
- #6
- Size:
- ca. 12.33 µm
- Distribution:
- 41.4 %
- No.:
- #7
- Size:
- ca. 17.77 µm
- Distribution:
- 65.52 %
- No.:
- #7
- Size:
- ca. 25.61 µm
- Distribution:
- 69.92 %
- No.:
- #8
- Size:
- ca. 36.87 µm
- Distribution:
- 70.98 %
- No.:
- #9
- Size:
- ca. 53.05 µm
- Distribution:
- 75.33 %
- No.:
- #10
- Size:
- ca. 76.3 µm
- Distribution:
- 72.7 %
- Conclusions:
- The particle size distribution shows a continuous distribution from approximately 7 μm,
(leaving a fraction of less than 10% below 6 μm) to approx. 25 μm. The residues of the
size diameters 25 - 76 μm show statistical variation only, indicating that particle sizes between
25 and 76 μm are not present in the test item lodo(triphenylphosphino)copper.
25-30% of the particles show sizes above 76 μm and can not be measured using the
Stokes equation. Approximately 25% of the particles are smaller than 10 μm.
One additional experiment was performed. This experiment showed variations to the other
two main studies (although the percentage below 10 μm as well as the percentage above
80 μm was nearly the same) and was therefore considered as invalid and not stated in this
final report. The raw data of the experiment will be stored together with the other raw data
of the study. - Executive summary:
Approximately 25% of the particles are smaller than 10 μm and 25-30% of the particles show sizes above 76 μm.
Reference
Description of key information
Approximately 25% of the particles are smaller than 10 μm and 25-30% of the particles show sizes above 76 μm.
Additional information
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