Registration Dossier
Registration Dossier
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EC number: 217-617-8 | CAS number: 1912-24-9
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 09 February 2010
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- NON GLP study. It was assessed that Laser scattering diffraction method is suitable to determine the distribution of particles. No information about calibration of the instrument has been reported. Test item particle size is in the applicability range of the method (0.1 - 100 microns).
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- The particle size distribution has been determined by a laser diffraction equipment, Malvern Masterziser.
After dissolving few grams of technical material in water the detection of particle size distribution started and recorded on a Gaussian distribution curve.
System details:
Sampler: internal
Presentation: 4OHD
Analysis model: polydisperse
Modifications: none
Particle R.I. = 1.5295, 0.10000
Dispersant R.I.= 1.3300
Measured beam obscuration 16:1%
residual: 0.187 - GLP compliance:
- no
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Atrazine
- EC Number:
- 217-617-8
- EC Name:
- Atrazine
- Cas Number:
- 1912-24-9
- Molecular formula:
- C8H14ClN5
- IUPAC Name:
- 6-chloro-N2-ethyl-N4-(propan-2-yl)-1,3,5-triazine-2,4-diamine
- Details on test material:
- Sample name: Atrazine technical
Source: OXON Italia S.p.A.
Reference n. MB0836
Batch n. 098195235
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 18.55 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D10
- Mean:
- 2.96 µm
- Remarks on result:
- other: Span = 2.417
- Percentile:
- D50
- Mean:
- 18.55 µm
- Remarks on result:
- other: Span = 2.417
- Percentile:
- D90
- Mean:
- 47.48 µm
- Remarks on result:
- other: Span = 2.417
Applicant's summary and conclusion
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