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EC number: 700-740-0 | CAS number: 1103234-56-5
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)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
- Principles of method if other than guideline:
- Dispersion medium
Weigh 5 g of SPAN 80 into a conical flask and mix with 1 l of n-Heptane. Stir this solution for at
least 30 minutes at room temperature with a magnetic rod. Filter through a 0.45 µm MILLIPORE-filter.
Procedure:
Add appropriately 150 ml of the Dispersant into the dispersion unit and set the pump/stir speed to
approx. 3000 rpm. Align the laser beam and measure the background to determine the suitability of
the blank. Gradually transfer the sample into the dispersion unit using an approx. 5 mm large
spatula,
ensuring that the obscuration is in the 10% - 30% range. Allow the sample to equilibrate in the
dispersion unit and start the measurement after approximately 3 minutes stirring time.
Repeat the procedure two additional times for each sample tested. This means that for each sample
of material, measurements should be performed on at least three separate sample preparations.
Average and report the mean value of d(0.95). - GLP compliance:
- no
- Other quality assurance:
- other: Internal Quality Assurance
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- other: laser diffraction
Test material
- Reference substance name:
- 2,6-difluoro-3-(propane-1-sulfonamido)benzoic acid
- EC Number:
- 700-740-0
- Cas Number:
- 1103234-56-5
- Molecular formula:
- C10H11F2NO4S
- IUPAC Name:
- 2,6-difluoro-3-(propane-1-sulfonamido)benzoic acid
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- ca. 5.822 µm
- St. dev.:
- 1.4
- Percentile:
- D50
- Mean:
- ca. 32.689 µm
- St. dev.:
- 1.7
- Percentile:
- D90
- Mean:
- ca. 122.125 µm
- St. dev.:
- 3.7
Any other information on results incl. tables
Particle Size |
Volume weighed Mean |
||||
Batch |
d10 (µm) |
d50 (µm) |
d90 (µm) |
d(4,3) (µm) |
Mode (µm) |
BS11060227 Archimica |
5.804 |
32.417 |
117.525 |
55.103 |
39.751 |
5.768 |
32.152 |
117.067 |
53.955 |
39.568 |
|
5.756 |
32.569 |
123.041 |
59.440 |
40.056 |
|
5.800 |
32.638 |
123.266 |
59.308 |
40.267 |
|
5.818 |
32.578 |
122.555 |
58.141 |
39.992 |
|
5.985 |
33.781 |
129.294 |
62.948 |
40.705 |
|
mean |
5.8 |
32.7 |
122.1 |
58.1 |
40.1 |
Srel in % |
1.4 |
1.7 |
3.7 |
5.6 |
1.0 |
Applicant's summary and conclusion
- Conclusions:
- Average (µm)
Volume weighted mean 58.149
Median (d.50) 32.689
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