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EC number: 200-526-2 | CAS number: 62-23-7
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:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 59 Sieve Analysis CIPAC MT 170 Dry Sieve Analysis of Water Dispersible Granules CIPAC MT 169 Tap Density of Water Dispersible Granules
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- sieving
Test material
- Reference substance name:
- 4-nitrobenzoic acid
- EC Number:
- 200-526-2
- EC Name:
- 4-nitrobenzoic acid
- Cas Number:
- 62-23-7
- Molecular formula:
- C7H5NO4
- IUPAC Name:
- 4-nitrobenzoic acid
- Test material form:
- solid: crystalline
Constituent 1
Results and discussion
Particle size
- Key result
- Percentile:
- D99
- Mean:
- >= 250 - < 1 000 µm
- St. dev.:
- 0.99
Particle size distribution at different passagesopen allclose all
- No.:
- #4
- Size:
- ca. 100 µm
- Distribution:
- ca. 5.2 %
- No.:
- #1
- Size:
- ca. 250 µm
- Distribution:
- ca. 52.4 %
- No.:
- #2
- Size:
- ca. 500 µm
- Distribution:
- ca. 38.3 %
- No.:
- #3
- Size:
- ca. 1 000 µm
- Distribution:
- ca. 0.3 %
Applicant's summary and conclusion
- Conclusions:
- Machine sieving test was carried out using the following test sieves 4, 2, 1 mm, 500, 250,
100, 63 and 45 µm.
The particle size distribution of 4-Nitrobenzic acid was found to be: between 250 µm and
1000 µm.. - Executive summary:
The tap density of 4-Nitrobenzic acid was found to be 0.79 g/mL.
Details are summarized in Table 1.
Table 1. Tap density determination
Sample mass (W): 79.3 g Sample volume after dropping (V): 100 mL Tap density (D): 0.79 g/mL The particle size distribution of 4-Nitrobenzic acid was found to be in the range of 250 to
1000 µm. Details are summarized in Table 2.
Table 2. Sieve test
Number of sieves (n): 8 Sample mass (m calculated): 126.9 g Samples mass (weighed): 130.32 g Sieve Residue mass gx
(g)Residue rx
(m/m) %Sum of residues Rx
(m/m) %Size (µm) Serial No. < 45 receiver pan 0.00 0.0 96.48 45 20111588 0.06 0.0 96.48 63 20111627 0.16 0.1 96.43 100 31121141 6.80 5.2 96.31 250 20111667 68.29 52.4 91.09 500 16111554 49.92 38.3 38.69 1000 20111725 0.44 0.3 0.38 2000 24111027 0.04 0.0 0.05 4000 14111099 0.02 0.0 0.02
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