Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013-10-13
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
Deviations:
no
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Key result
Percentile:
D50
Mean:
526.6 µm
Remarks on result:
other: no SD indicated
Percentile:
D10
Mean:
230.8 µm
Remarks on result:
other: no SD indicated
Percentile:
D90
Mean:
1 052.7 µm
Remarks on result:
other: no SD indicated

The test item consisted of rhombic crystals.


For each test series fractions (left axis of the ordinate) and the siftings (right axis of the ordinate) were presented in volume % as a function of the particle size.


The median particle size L50 (D (v, 0.5): 50 % of particle volume or particle mass with lower particle diameter) deduced from these distributions were:


1st test series: L50 = 539.3 μm


2nd test series: L50 = 513.9 μm


The average of the median particle size L50 was L50 = 526.6 μm.


The particle size L10 (D (v, 0.1): 10 % of particle volume or particle mass with lower particle diameter) deduced from these distributions were:


1st test series: L10 = 242.3 μm


2nd test series: L10 = 219.3 μm


The average of the particle size L10 was L10 = 230.8 μm.


The particle size L90 (D (v, 0.9): 90 % of particle volume or particle mass with lower particle diameter) deduced from these distributions were:


1st test series: L90 = 1056.5 μm


2nd test series: L90 = 1048.8 μm


The average of the particle size L90 was L90 = 1052.7 μm.


The particle size distribution showed a monomodal distribution. The maximum was observed at approximately 600 μm.

Conclusions:
The median particle size L50 of the test item deduced from the particle size distributions was 526.6 μm.
Executive summary:

The study was conducted to determine the particle size distribution by laser diffraction of the test items. The study was performed according to the European Commission Regulation (EC) No. 440/2008 and under consideration of OECD TG 110. The median particle size L50 of the test item deduced from the particle size distributions was 526.6 μm. The particle size L10 of the test item deduced from the particle size distributions was 230.8 μm. The particle size L90 of the test item deduced from the particle size distributions was 1052.7 μm.

Description of key information

The median particle size L50 of the test item deduced from the particle size distributions was 526.6 μm.

Additional information

The study was conducted to determine the particle size distribution by laser diffraction of the test items. The study was performed according to the European Commission Regulation (EC) No. 440/2008 and under consideration of OECD TG 110. The median particle size L50 of the test item deduced from the particle size distributions was 526.6 μm. The particle size L10 of the test item deduced from the particle size distributions was 230.8 μm. The particle size L90 of the test item deduced from the particle size distributions was 1052.7 μm.