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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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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: scientifically acceptable

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report date:
2005

Materials and methods

Principles of method if other than guideline:
other: measured (laser diffraction)
GLP compliance:
no
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
4-aminoazobenzene
EC Number:
200-453-6
EC Name:
4-aminoazobenzene
Cas Number:
60-09-3
Molecular formula:
C12H11N3
IUPAC Name:
4-[(E)-2-phenyldiazen-1-yl]aniline
Details on test material:
Name of test material (as cited in study report): 4-aminoazobenzene
Analytical purity: pure

Results and discussion

Particle size
Percentile:
D50
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:
< 100 µm
Distribution:
65 %
No.:
#2
Size:
< 10 µm
Distribution:
15 %
No.:
#3
Size:
< 4 µm
Distribution:
5 %

Any other information on results incl. tables

RS-Freetext:
approx. 90% < 240 micron; 
approx. 65% < 100 micron; 
approx. 50% < 46 micron; 
approx. 15% < 10 micron; 
approx. 10% < 7.5 micron; 
approx. 5%  < 4 micron

Applicant's summary and conclusion