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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: GB/T 19077-2016
Principles of method if other than guideline:
The particle size is determined according to GB/T 19077-2016: “Particle size analysis - Laser diffraction methods”. A sample, dispersed at an adequate concentration in gas, is passed through the beam of a monochromatic light source, usually a laser. The light scattered by the particles, at various angles, is measured by multi-element detectors, These numerical scattering values are then transformed, using an appropriate optical model and mathematical procedure, to yield the proportion of the total volume of particles to a discrete number of size classes forming a volumetric particle size distribution (PSD).
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
(4R)-4-[(4S)-2-oxo-1,3-dioxolan-4-yl]-1,3-dioxolan-2-one
EC Number:
636-728-6
Cas Number:
24690-44-6
Molecular formula:
C6H6O6
IUPAC Name:
(4R)-4-[(4S)-2-oxo-1,3-dioxolan-4-yl]-1,3-dioxolan-2-one
Test material form:
solid

Results and discussion

Particle sizeopen allclose all
Percentile:
D10
Mean:
25.3 µm
Remarks on result:
other: The determination result can be considered valid.
Percentile:
D50
Mean:
105 µm
Remarks on result:
other: The determination result can be considered valid.
Percentile:
D90
Mean:
315 µm
Remarks on result:
other: The determination result can be considered valid.

Any other information on results incl. tables

Average particle size in surface area D(3,2) 48.9 μm


Average particle size in volume D(4,3) 141 μm

Applicant's summary and conclusion

Conclusions:
Cumulative distribution
1) D10: 25.3 μm
2) D50: 105 μm
3) D90: 315 μm

Average particle size in surface area
D [3,2]: 48.9 μm

Average particle size in volume
D [4,3]: 141 μm