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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
GLP compliance:
no
Other quality assurance:
other: ISO9001
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle

Test material

Constituent 1
Chemical structure
Reference substance name:
2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride
EC Number:
306-764-4
EC Name:
2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride
Cas Number:
97404-02-9
Molecular formula:
C11H14N5.Cl
IUPAC Name:
2-[(1E)-2-(4-aminophenyl)diazen-1-yl]-1,3-dimethyl-2,3-dihydro-1H-imidazol-1-ium chloride
Test material form:
solid: particulate/powder
Details on test material:
See individual study reports for purity information and CofA where applicable
Specific details on test material used for the study:
Basic Orange 31
CI306081 1075126

Results and discussion

Particle sizeopen allclose all
Percentile:
D10
Mean:
12.3 µm
St. dev.:
0
Remarks on result:
other: St. Dev not measured
Percentile:
D50
Mean:
35.8 µm
St. dev.:
0
Remarks on result:
other: St. Dev not measured
Percentile:
D90
Mean:
673 µm
St. dev.:
0
Remarks on result:
other: St. Dev not measured

Applicant's summary and conclusion

Conclusions:
Particle size measurement was carried out on a Mastersizer 3000.
Specific Surface Area 91.39m2/kg

Particle Size
DV10 = 12.3 μm
DV50 = 35.8 μm
DV90 = 673 μm
Executive summary:

Particle size measurement was carried out on a Mastersizer 3000.

Specific Surface Area 91.39m2/kg

Particle Size

DV10 = 12.3 μm

DV50 = 35.8 μm

DV90 = 673 μm