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EC number: 909-082-0 | CAS number: 938065-79-3
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 05 November 2004 - 09 February 2005
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: valid method according to JRC Guidance
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guideline
- Guideline:
- other: See below
- Principles of method if other than guideline:
- Testing followed the JRC Guidance:
EUROPEAN COMMISSION, Directorate General XII-JRC, Science Research and Development-Joint Research Centre. "Particle Size Distribution, Fibre Length and Diameter Distribution" Guidance Document, ECBTTM/February 1996 - GLP compliance:
- yes (incl. QA statement)
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Reaction mass of 5,12-dihydro-2,9-dimethylquino[2,3-b]acridine-7,14-dione and 5,12-dihydro-2-methylquino[2,3-b]acridine-7,14-dione and 5,12-dihydroquino[2,3-b]acridine-7,14-dione
- EC Number:
- 909-082-0
- Cas Number:
- 938065-79-3
- Molecular formula:
- Unspecified
- IUPAC Name:
- Reaction mass of 5,12-dihydro-2,9-dimethylquino[2,3-b]acridine-7,14-dione and 5,12-dihydro-2-methylquino[2,3-b]acridine-7,14-dione and 5,12-dihydroquino[2,3-b]acridine-7,14-dione
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 1.2 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D50
- Mean:
- 1.2 µm
- St. dev.:
- 0.021
Any other information on results incl. tables
Overall, the particle size ranged approximately from 0.3 -40 µm.
Detailed results are presented in the following table.
[%] |
1st Run Size [µm] |
2nd Run [µm] |
3rd Run [µm] |
4th Run [µm] |
Mean Size [µm] |
Stand. [±] |
5 |
0.46 |
0.45 |
0.45 |
0.44 |
0.5 |
0.008 |
10 |
0.57 |
0.55 |
0.56 |
0.55 |
0.6 |
0.010 |
50 |
1.23 |
1.20 |
1.20 |
1.18 |
1.2* |
0.021 |
90 |
2.76 |
2.80 |
2.82 |
2.86 |
2.8 |
0.042 |
* The MMD of the test item indicates that 50 % (by mass) of the particies are smaller than 1.2 µm.
Applicant's summary and conclusion
- Conclusions:
- The test item has a mass median diameter of 1.2 µm.
- Executive summary:
The particle size distribution was determined by laser diffraction following the JRC guidance document. The mass median diameter is 1.2 µm.
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