Registration Dossier
Registration Dossier
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EC number: 235-468-7 | CAS number: 12237-62-6 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 42535:3.
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Data is from experimental study report
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Qualifier:
- according to guideline
- Guideline:
- other: IS: 2720 (Part 4)–1985 (Reaffirmed 2006)
- GLP compliance:
- no
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Key result
- Percentile:
- D50
- Mean:
- > 25 - < 150 µm
- Remarks on result:
- other: mass median diameter
- No.:
- #1
- Size:
- 150 µm
- Distribution:
- 21.32 %
- No.:
- #2
- Size:
- 106 µm
- Distribution:
- 29.442 %
- No.:
- #3
- Size:
- 75 µm
- Distribution:
- 30.051 %
- No.:
- #4
- Size:
- 53 µm
- Distribution:
- 18.954 %
- No.:
- #5
- Size:
- 25 µm
- Distribution:
- 0.234 %
- Conclusions:
- The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.
- Executive summary:
The particle size of test chemical was determined by using OECD guideline 110 and according to Adapted from IS: 2720 (Part 4)–1985 (Reaffirmed 2006). The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.
Reference
Observation:
Sieve sizes(in microns) |
Weight of petridishes+ test item(g) |
Test item quantity retained after sieving (g) |
Percentage(%)of test item* |
150microns |
49.247 |
2.1 |
21.3197 |
106 microns |
52.412 |
2.9 |
29.4416 |
75 microns |
44.179 |
2.96 |
30.0507 |
53 microns |
50.214 |
1.867 |
18.9543 |
25 microns |
37.814 |
0.023 |
0.2335 |
10microns |
- |
0 |
0.0000 |
BottomPan |
- |
0 |
0.0000 |
CALCULATIONS:
The particle size distribution of the test chemical is calculated using the formula:
Total amount of test chemical lost after sieving = Original test chemical taken - Total test chemical retained after sieving
% of test chemical = Test chemical retained after sieving (g)/Total test chemical retained after sieving (g) X 100
RESULTS:
Sieve sizes(in microns) |
Percentage(%)of test item* |
150microns |
21.3197 |
106 microns |
29.4416 |
75 microns |
30.0507 |
53 microns |
18.9543 |
25 microns |
0.2335 |
10microns |
0.0000 |
BottomPan |
0.0000 |
Description of key information
On the basis of available data from study report, the particle size of test chemical was determined by using OECD guideline 110 and according to Adapted from IS: 2720 (Part 4)–1985 (Reaffirmed 2006). The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.
Additional information
On the basis of available data from study report, the particle size of test chemical was determined by using OECD guideline 110 and according to Adapted from IS: 2720 (Part 4)–1985 (Reaffirmed 2006). The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.
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