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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Principles of method if other than guideline:
Accurately weighed a 180-µm sieve and an empty pan. Accurately weighed 10.49 g of test substance into the sieve. Place sieve and pan on a sieve shaker and shook for 10 minutes. Re-weighed the sieve and the pan. Calculated the percentage of particles that were less than 105-µm. The particles less than 105-µm were sent out to New Jersey Institute of Technology Material Characterization Laboratory for particle size distribution using a Beckman Coulter LS 230 Particle Size Analyzer.
GLP compliance:
yes
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
o-phenylenediamine
EC Number:
202-430-6
EC Name:
o-phenylenediamine
Cas Number:
95-54-5
Molecular formula:
C6H8N2
IUPAC Name:
benzene-1,2-diamine
Details on test material:
- Purity: 99.83%

Results and discussion

Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
180 µm
Distribution:
0.48 %
No.:
#2
Size:
21 µm
Distribution:
10 %
No.:
#3
Size:
17.67 µm
Distribution:
25 %
No.:
#4
Size:
10.96 µm
Distribution:
50 %
No.:
#5
Size:
6.018 µm
Distribution:
75 %
No.:
#6
Size:
3.454 µm
Distribution:
90 %

Applicant's summary and conclusion

Conclusions:
0.48% of particles were <105 µm.
Executive summary:

The particle size of the test substance was measured and the percentage of particles that were less than 105-µm was calculated. The particles less than 105 µm were sent for particle size distribution using a Beckman Coulter LS 230 Particle Size Analyzer. 0.45% of the particles were <105 µm.