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:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Titanium tungsten carbide
EC Number:
254-435-8
EC Name:
Titanium tungsten carbide
Cas Number:
39377-63-4
Molecular formula:
(W,Ti)C
IUPAC Name:
Titanium tungsten carbide
Test material form:
solid: particulate/powder

Results and discussion

Particle sizeopen allclose all
Key result
Percentile:
D10
Mean:
>= 2.54 µm
St. dev.:
0.1
Key result
Percentile:
D50
Mean:
>= 4.59 µm
St. dev.:
0.5
Key result
Percentile:
D90
Mean:
>= 8.85 µm
St. dev.:
0.9

Applicant's summary and conclusion

Conclusions:
Parameter
Analytical result and conclusion
Cumulative distribution
1)d(0.10) :2.54 μm
2)d(0.50) : 4.59 μm
3)d(0.90) :8.85 μm
Average particle size in surface area
D [3,2]: 4.20 μm
Average particle size in volume
D [4,3]: 5.25 μm