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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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