Registration Dossier

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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: No guideline available

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2003
Report date:
2003

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Sieve analysis
GLP compliance:
no
Type of method:
sieving
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
4-aminotoluene-3-sulphonic acid
EC Number:
201-831-3
EC Name:
4-aminotoluene-3-sulphonic acid
Cas Number:
88-44-8
Molecular formula:
C7H9NO3S
IUPAC Name:
2-amino-5-methylbenzene-1-sulfonic acid
Constituent 2
Reference substance name:
4B-Acid
IUPAC Name:
4B-Acid
Details on test material:
Mitsuboshi Chemical Co., Ltd.: purity >99%

Results and discussion

Particle size
Percentile:
D50
Mean:
< 0.105 mm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
> 0.297 mm
Distribution:
0.3 %
No.:
#2
Size:
> 0.25 - < 0.297 mm
Distribution:
0.3 %
No.:
#3
Size:
> 0.177 - < 0.25 mm
Distribution:
1.6 %
No.:
#4
Size:
> 0.149 - < 0.177 mm
Distribution:
5.8 %
No.:
#5
Size:
> 0.105 - < 0.149 mm
Distribution:
23.1 %
No.:
#6
Size:
< 0.105 mm
Distribution:
68.9 %

Applicant's summary and conclusion

Conclusions:
Fine powder