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EC number: 244-073-9 | CAS number: 20837-86-9
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: guideline study according to GLP standard
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- GLP compliance:
- yes (incl. QA statement)
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Lead cyanamidate
- EC Number:
- 244-073-9
- EC Name:
- Lead cyanamidate
- Cas Number:
- 20837-86-9
- Molecular formula:
- CN2.Pb
- IUPAC Name:
- λ²-lead(2+) (azanidylenemethylidene)azanide
Constituent 1
Results and discussion
Particle size
- Percentile:
- D50
- Mean:
- µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- 200.61 µm
- Distribution:
- 87.42 %
- No.:
- #2
- Size:
- 91.35 µm
- Distribution:
- 75.85 %
- No.:
- #3
- Size:
- 65.9 µm
- Distribution:
- 68.9 %
- No.:
- #4
- Size:
- 52.2 µm
- Distribution:
- 60.38 %
- No.:
- #5
- Size:
- 38.2 µm
- Distribution:
- 52.95 %
- No.:
- #6
- Size:
- 22.95 µm
- Distribution:
- 48.97 %
- No.:
- #7
- Size:
- 14.23 µm
- Distribution:
- 36.59 %
- No.:
- #8
- Size:
- 10.54 µm
- Distribution:
- 32.52 %
- No.:
- #9
- Size:
- 5.39 µm
- Distribution:
- 19.7 %
- No.:
- #10
- Size:
- 2.22 µm
- Distribution:
- 5.15 %
Any other information on results incl. tables
Approx. 13% (6% of 100%-value) of the particles are larger than 200.61 µm.
In three experimentes sedimentation took place already before the first sampling time: in the three experimentes, 8.47%, 6,25% resp. 8.12 % of the particles were not retrieved when determining the 100% value. These particles must be considered as larger than the upper Stokes diameter.
For the test item the mentioned particle size distribution was found.
Applicant's summary and conclusion
- Conclusions:
- The presented data are reliable and adequate.
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