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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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:
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