Registration Dossier

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:
2017-05-29
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
Version / remarks:
1981
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
Version / remarks:
1996
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
mass based distribution
Key result
Percentile:
D10
Mean:
4.6 µm
Remarks on result:
other: Standard deviation not reported
Key result
Percentile:
D50
Mean:
172.9 µm
Remarks on result:
other: Standard deviation not reported
Key result
Percentile:
D90
Mean:
507.2 µm
Remarks on result:
other: Standard deviation not reported

Two test series of 3 measurements each were performed with the test item.

Test series 1

D10: 4.8 µm

D50: 177.8 µm (Median diameter)

D90: 515.4 µm

Test series 2

D10: 4.4 µm

D50: 168.0 µm (Median diameter)

D90: 499.1 µm

Average

D10: 4.6 µm

D50: 172.9 µm (Median diameter)

D90: 507.2 µm

Conclusions:
n-Butyltriphenylphosphonium bromide has a median particle size D50 = 172.9 µm, which was determined by laser diffraction measurement. D10 and D90 are 4.6 and 507.2 µm, respectively.

Description of key information

Median particle size D50 = 172.9 µm

D10, D50 and D90: 4.6, 172.9 and 507.2 µm, respectively.

Additional information

GLP study according to OECD TG 110 using laser diffraction measurement