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EC number: 236-308-9 | CAS number: 13291-61-7
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
- Study period:
- June 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Key result
- Percentile:
- D10
- Mean:
- 3.7 µm
- St. dev.:
- 0.1
- Key result
- Percentile:
- D50
- Mean:
- 25.2 µm
- St. dev.:
- 0.1
- Key result
- Percentile:
- D90
- Mean:
- 96.2 µm
- St. dev.:
- 0.3
- Conclusions:
- The test item trans-cyclohexane-1,2-dinitrilotetraacetic acid monohydrate has a median particle size D50 = 25 µm, which was determined by laser diffraction measurement.
Reference
Two test series of 3 measurements each were performed with the test item.
| Test series 1 | Test series 2 | Average |
|
| D10 | 3.6 µm | 3.8 µm | 3.7 µm |
| D50 | 25.1 µm | 25.3 µm | 25.2 µm |
| D90 | 95.9 µm | 96.5 µm | 96.2 µm |
Description of key information
The test item trans-cyclohexane-1,2-dinitrilotetraacetic acid monohydrate has a median particle size D50 = 25 µm, which was determined by laser diffraction measurement.
Additional information
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