Registration Dossier
Registration Dossier
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EC number: 224-580-1 | CAS number: 4418-26-2
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:
- 14 Sept to 23 Sept 2016
- 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 B: Fibre Length and Diameter Distributions
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 3.9 µm
- Remarks on result:
- other: no Standard deviation given
- Percentile:
- D50
- Mean:
- 21.1 µm
- Remarks on result:
- other: no Standard deviation given
- Percentile:
- D90
- Mean:
- 72 µm
- Remarks on result:
- other: no Standard deviation given
Reference
Results
Particle Size Distribution
Two test series of 3 measurements each were performed with the fine fraction of the test item.
Table: results of two test series
Distribution |
Test series 1 |
Test series 2 |
Average |
D10 |
3.9 µm |
2.9 µm |
3.9 µm |
D50 |
21.0 µm |
21.2 µm |
21.1 µm |
D90 |
72.2 µm |
71.7 µm |
72.0 µm |
The test item dehydroactic acid sodium salt has a median particle size D50 = 21.1 µm.
Description of key information
The substance dehydroacetic acid sodium salt has a median particle size D50 = 21.1 µm (OECD 110, laser diffraction).
Additional information
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.
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