Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 236-283-4 | CAS number: 13280-60-9
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 5 - 11 September 2019
- 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 guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Version / remarks:
- 1981
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- 2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Version / remarks:
- 1996
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 5-amino-2-nitrobenzoic acid
- EC Number:
- 236-283-4
- EC Name:
- 5-amino-2-nitrobenzoic acid
- Cas Number:
- 13280-60-9
- Molecular formula:
- C7H6N2O4
- IUPAC Name:
- 5-amino-2-nitrobenzoic acid
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- Oxidane
- Reference substance name:
- Unknown impurities.
- Molecular formula:
- Not available as unknown impurities.
- IUPAC Name:
- Unknown impurities.
- Test material form:
- solid
- Details on test material:
- Batch / Lot No. 10044431
Constituent 1
impurity 1
impurity 2
- Specific details on test material used for the study:
- Batch No.: 10044431
Storage Conditions: Room temperature (approx. 15 to 25 °C)
Since the test item contains no lager particles, sieving < 2000 µm was not necessary and the test item was used as delivered.
Results and discussion
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- 2.4 µm
- St. dev.:
- 0.03
- Remarks on result:
- other: Average result calculated from the results of two test series
- Key result
- Percentile:
- D50
- Mean:
- 7 µm
- St. dev.:
- 0.07
- Remarks on result:
- other: Average result calculated from the results of two test series
- Key result
- Percentile:
- D90
- Mean:
- 15.2 µm
- St. dev.:
- 0.29
- Remarks on result:
- other: Average result calculated from the results of two test series
Any other information on results incl. tables
LIGHT MICROSCOPY
The optically investigation of the test item with different magnifications have been investigated. For a better visualization a 10x10 grid with 100 µm squares was used.
At 5x and 20x magnifications no agglomerates can be observed. Examining the 50x magnification, the test item primarily consists of crystalline particles.
Particle Size Distribution
Two test series of 3 measurements each were performed with the test item.
Test series 1:
| Percentile | Particle size (µm) | Standard deviation |
| D10 | 2.3 | <0.01 |
| D50 | 6.9 | 0.01 |
| D90 | 14.9 | 0.05 |
Test series 2:
| Percentile | Particle size (µm) | Standard deviation |
| D10 | 2.4 | 0.02 |
| D50 | 7.0 | 0.05 |
| D90 | 15.5 | 0.23 |
Applicant's summary and conclusion
- Conclusions:
- The test item 5-Amino-2-nitrobenzoic acid (CAS no.13280-60-9) has a median particle size of D50 = 7.0 µm, which was determined by laser diffraction measurement according to OECD Test Guideline 110 (1981), ISO 13320 (2009) and EPA OCSPP Guideline 830.7520 (1996).
- Executive summary:
The test item 5-Amino-2-nitrobenzoic acid (CAS no.13280-60-9) has a median particle size of D50 = 7.0 µm, which was determined by laser diffraction measurement according to OECD Test Guideline 110 (1981), ISO 13320 (2009) and EPA OCSPP Guideline 830.7520 (1996).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
