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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:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Qualifier:
according to guideline
Guideline:
other: NF ISO 14887. (2000). Sample preparation – Dispersing procedures for powders in liquids
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction

Test material

Constituent 1
Chemical structure
Reference substance name:
Ammonium glycyrrhizate
EC Number:
258-887-7
EC Name:
Ammonium glycyrrhizate
Cas Number:
53956-04-0
Molecular formula:
C42H65NO16
IUPAC Name:
ammonium glycyrrhizate

Results and discussion

Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
<= 2 µm
Distribution:
1.1 %
Remarks on result:
other: cumulative distribution
No.:
#2
Size:
<= 3.4 µm
Distribution:
3.6 %
Remarks on result:
other: cumulative distribution
No.:
#3
Size:
<= 5.8 µm
Distribution:
6.5 %
Remarks on result:
other: cumulative distribution
No.:
#4
Size:
<= 10.1 µm
Distribution:
11.7 %
Remarks on result:
other: cumulative distribution
No.:
#5
Size:
<= 17.4 µm
Distribution:
23.6 %
Remarks on result:
other: cumulative distribution
No.:
#6
Size:
<= 29.9 µm
Distribution:
43.1 %
Remarks on result:
other: cumulative distribution
No.:
#7
Size:
<= 51.5 µm
Distribution:
65.9 %
Remarks on result:
other: cumulative distribution
No.:
#8
Size:
<= 88.6 µm
Distribution:
87.3 %
Remarks on result:
other: cumulative distribution
No.:
#9
Size:
<= 152.5 µm
Distribution:
97.9 %
Remarks on result:
other: cumulative distribution
No.:
#10
Size:
<= 200 µm
Distribution:
99.6 %
Remarks on result:
other: cumulative distribution

Any other information on results incl. tables

The particle size distribution deconvolution in two peaks gives the following data:

Peak

1

2

Mean diameter value (µm)

11.4

43.6

Approximate area (%)

22.0

79.6

Applicant's summary and conclusion

Conclusions:
The particle size distribution of the test item has been determined and the following results were obtained:
- 1.13 % of particles own a diameter under 2 µm.
- 98.44 % of particles own a diameter between 2 µm and 200 µm.
- 0.44 % of particles own a diameter over 200 µm

In addition, 11,7% of particles own a diameter under 10,1µm.