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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
Study period:
2020-04-07
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2020
Report date:
2020

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
- Principle of test: 100 g of the substance were weighed. After this, the weight was put in an analytical sieve machine and sieved under controlled electromagnetic drive for 2 min.
- Short description of test conditions:
Equipment
- Verified scale
- Analytical Sieve machine Retsch AS200 control
- 900 µm sieve
- 800 µm sieve
- 600 µm sieve
- 500 µm sieve
- 400 µm sieve
- 300 µm sieve
- 200 µm sieve
- 100 µm sieve
Parameters
- Amplitude 1,02 mm (lifting height)
- Sieving for 2 min
- Interval off
- Parameters analysed / observed: mass based distribution
GLP compliance:
no
Other quality assurance:
other:
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
mass based distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Manganate(1-), glycinato-N,O)[sulfato(2-)-O]-, hydrogen
EC Number:
838-538-0
Cas Number:
52139-31-8
Molecular formula:
C2H5MnNO6S
IUPAC Name:
Manganate(1-), glycinato-N,O)[sulfato(2-)-O]-, hydrogen
Test material form:
solid

Results and discussion

Particle sizeopen allclose all
Key result
Percentile:
other: % of material initially placed on the sieve
Mean:
0 other: %
Remarks on result:
other: 0% of the material was sieved at sizes of 900 - 500 µm
Key result
Percentile:
other: % of material initially placed on the sieve
Mean:
15.5 other: %
Remarks on result:
other: 15.5% of the material initially placed on the sieve was detected at sizes between 500 - 400 µm
Key result
Percentile:
other: % of the material initially plaecd on the sieve
Mean:
33.5 other: %
Remarks on result:
other: 33.5% of the material initially placed on the sieve was detected at sizes between 400 - 300 µm
Key result
Percentile:
other: % of the material initially placed on the sieve
Mean:
40 other: %
Remarks on result:
other: 40% of the material initially placed on the sieve was detected at sizes between 300 - 200 µm
Key result
Percentile:
other: % of the material initially placed on the sieve
Mean:
11 other: %
Remarks on result:
other: 11% of the material initially placed on the sieve was detected at sizes between 200 - 100 µm
Key result
Percentile:
other: % of the material initially placed on the sieve
Mean:
0 other: %
Remarks on result:
other: 0% of the material initially placed on the sieve was detected at sizes between < 100 µm
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
>= 500 - <= 900 µm
Distribution:
0 %
No.:
#2
Size:
>= 400 - <= 500 µm
Distribution:
15.5 %
No.:
#3
Size:
>= 300 - <= 400 µm
Distribution:
33.5 %
No.:
#4
Size:
>= 200 - <= 300 µm
Distribution:
40 %
No.:
#5
Size:
>= 100 - <= 200 µm
Distribution:
11 %
No.:
#6
Size:
< 100 µm
Distribution:
0 %

Applicant's summary and conclusion

Conclusions:
Based on the present test conducted to determine the particles size of the test substance by sieving the substance contains only particles that are between 500 and 100 µm in size. No particles under 100 µm size were detected.