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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:
supporting study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: ISO 2926 : 2005 Alu- minium oxide used for the production of primary aluminium – Particle size analysis for the range 45 μm to 150 μm – Method using electroformed sieves
Principles of method if other than guideline:
With a sieve shaker, a certain mass of the sample is sieved through a series of sieves with various aperture size. Each mass of the separate fractions retained on the sieve is weighed and the mass distribution of the particle sizes could be calculated.
GLP compliance:
no
Type of method:
sieving
Type of distribution:
mass based distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
5-nitro-1H-pyrazole
EC Number:
640-509-0
Cas Number:
26621-44-3
Molecular formula:
C3H3N3O2
IUPAC Name:
5-nitro-1H-pyrazole
Test material form:
solid: crystalline

Results and discussion

Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
>= 500 µm
Distribution:
ca. 0.15 %
No.:
#2
Size:
>= 355 - < 500 µm
Distribution:
ca. 0.29 %
No.:
#3
Size:
>= 250 - < 355 µm
Distribution:
ca. 0.36 %
No.:
#4
Size:
>= 180 - < 250 µm
Distribution:
ca. 4.2 %
No.:
#5
Size:
>= 150 - < 180 µm
Distribution:
ca. 9.14 %
No.:
#6
Size:
>= 100 - < 150 µm
Distribution:
ca. 13.56 %
No.:
#7
Size:
>= 53 - < 100 µm
Distribution:
ca. 40.42 %
No.:
#8
Size:
< 53 µm
Distribution:
ca. 31.89 %

Applicant's summary and conclusion

Conclusions:
Range of Particle size Mass fraction

>500 μm 0.15%

355 μm - 500 μm 0.29%

250 μm - 355 μm 0.36%

180 μm - 250 μm 4.20%

150 μm - 180 μm 9.14%

100 μm - 150 μm 13.56%

53μm - 100 μm 40.42%

<53 μm 31.89%