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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 231-818-8 | CAS number: 7757-79-1
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:
- 20 August 2010-20 August 2010
- 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)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320:2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Mean:
- 306.905 µm
- Remarks on result:
- other: Analysis was performed using the dry powder module: white crystals
- Key result
- Percentile:
- D10
- Mean:
- < 94.614 µm
- St. dev.:
- 1.42
- Key result
- Percentile:
- D50
- Mean:
- < 211.785 µm
- St. dev.:
- 3.59
- Key result
- Percentile:
- D90
- Mean:
- < 424.908 µm
- St. dev.:
- 8.02
- Conclusions:
- The particle size distribution of potassium nitrate (crystalline form) was determined by laser diffraction analysis-dry powder module. MMAD= 222.1 µm; 0.21% is < 10.00 µm; 10% is < 94.6 µm; 50% is < 211.8 µm and 90% is < 424.9 µm.
Reference
0.21 % by volume of sample was seen to be < 10.00 μm.
Description of key information
The particle size distribution of potassium nitrate (crystalline form) was determined by laser diffraction analysis-dry powder module (OECD 110, ISO 13320 and CIPAC MT 187, GLP). MMAD= 222.1 µm; 0.21%, 10%, 50% and 90% is < 10.00 µm, < 94.6 µm, < 211.8 µm and < 424.9 µm, resp.
Additional information
Prilled potassium nitrate are considered to have a higher particle size.
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.
