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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 209-533-5 | CAS number: 584-13-4
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 12. 08. 2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- First edition 2009-10-01, Corrected version 2009-12-01
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Guidance Document on the Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances EUR 20268 EN
- Version / remarks:
- 2002
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 4H-1,2,4-triazol-4-ylamine
- EC Number:
- 209-533-5
- EC Name:
- 4H-1,2,4-triazol-4-ylamine
- Cas Number:
- 584-13-4
- Molecular formula:
- C2H4N4
- IUPAC Name:
- 4H-1,2,4-triazol-4-ylamine
- Test material form:
- solid
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Key result
- Percentile:
- D50
- Mean:
- 756.52 µm
- St. dev.:
- 99.27
- Percentile:
- D10
- Mean:
- 502.86 µm
- St. dev.:
- 96.66
- Percentile:
- D90
- Mean:
- 1 064.02 µm
- St. dev.:
- 210.59
Applicant's summary and conclusion
- Conclusions:
- The particle size distribution of the test item, 4H-1,2,4-triazol-4-amine, was determined. The laser diffraction method was used.
Particle size distribution of test item, 4H-1,2,4-triazol-4-amine, is characterized by the following table:
Median(µm) Diameter on Cumul. 10% (µm) Diameter on Cumul. 90% (µm) Span (-)
Final result 756.52 502.86 1064.02 0.74
Ext. uncert. 99.27 96.66 210.59 -
Extended uncertainty was calculated from standard deviation using coefficient of 2. - Executive summary:
The particle size distribution of the test item, 4H-1,2,4-triazol-4-amine, was determined. The laser diffraction method was used.
The procedure was performed according to Standard ISO 13320:2009 Particle size analysis – Laser diffraction methods, First edition 2009-10-01 and with the considering of the recommendation of Guidance Document on the Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances, EUR 20268 EN (2002).
Particle size distribution of test item, 4H-1,2,4-triazol-4-amine, is characterized by the following table:
Median
(µm)
Diameter on Cumulative 10%
(µm)
Diameter on Cumulative 90%
(µm)
Span
(-)
Final result
756.52
502.86
1064.02
0.74
Extended uncertainty
99.27
96.66
210.59
-
Extended uncertainty was calculated from standard deviation using coefficient of 2.
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.
