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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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: well performed study according to acknowledged standard

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: ISO 13320 -1
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
ammonium sodium bis(4-amino-3-nitrobenzene-1-sulfonate)
EC Number:
700-384-6
Cas Number:
82324-60-5
Molecular formula:
C6H5N2O5S.H4N C6H5N2O5S.Na
IUPAC Name:
ammonium sodium bis(4-amino-3-nitrobenzene-1-sulfonate)
Test material form:
solid: bulk

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
22.8 µm
St. dev.:
3
Percentile:
D10
Mean:
2.9 µm
St. dev.:
0.1
Percentile:
D90
Mean:
147 µm
St. dev.:
36

Applicant's summary and conclusion

Conclusions:
The mass median diameter is 22.8 µm.
Executive summary:

The volumetric particle size distribution of the substance was determined with the following equipment: Malvern Mastersizer 2000, unit: Scirocco 2000.

The mass median diameter D50 could be determined as 22.8 µm.