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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-05-09 to 2017-06-15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Deviations:
no
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
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

Constituent 1
Chemical structure
Reference substance name:
(4-amino-1-hydroxy-1-phosphonobutyl)phosphonic acid hydrate
EC Number:
680-378-7
Cas Number:
138624-11-0
Molecular formula:
C4H15NO8P2
IUPAC Name:
(4-amino-1-hydroxy-1-phosphonobutyl)phosphonic acid hydrate
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Sponsor and 610-GTH
- Expiration date of the lot/batch: 31 March 2019
- Purity test date: 2016-04-16

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature protected from light

Results and discussion

Mass median aerodynamic diameter:
ca. 523.649 µm
Geometric standard deviation:
ca. 6.97
Particle sizeopen allclose all
Key result
Percentile:
D10
Mean:
ca. 209.301 µm
St. dev.:
3.992
Key result
Percentile:
D50
Mean:
ca. 396.977 µm
St. dev.:
5.284
Key result
Percentile:
D90
Mean:
ca. 672.746 µm
St. dev.:
6.692

Applicant's summary and conclusion

Conclusions:
This study validly assesed the particle size distribution of the test substance.

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