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Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
GLP compliance:
not specified
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
- Name of test material (as cited in study report): Aerophine 3418A Promoter, stripped
- IUPAC nomenclature - Sodium diisobutyldithiophosphinate
- Lot WEA102051
- Appearance - White powder with lumps
- CAS No. 13360-78-6
- Molecular Formula - C8H18PS2.Na
- Molecular Weight - 232 g/mole
- Purity > 99%
Percentile:
D10
Mean:
23 µm
St. dev.:
0
Remarks on result:
other: St dev not specified
Key result
Percentile:
D50
Mean:
86 µm
St. dev.:
0
Remarks on result:
other: St dev not specified
Percentile:
D90
Mean:
195 µm
St. dev.:
0
Remarks on result:
other: St dev not specified

Run No.

% < X µm

m)

X = 10

X = 50

X = 100

X = 250

Mean

Median

10thpercentile

90thpercentile

1

2.4

29

63

94

98

80

23

195

Conclusions:
Particle size of test substance is ~100 microns with particles ranging 10-1000 microns.
Executive summary:

Particle size of test substance is ~100 microns with particles ranging 10-1000 microns.

Optical images show that particles are acicular to rectangular in shape. Note that particle size is performed on the test substance after being freeze dried and particle morphology and size may be a direct result of the freeze drying process.

Description of key information

Particle size of test substance is ~100 microns with particles ranging 10-1000 microns.

Additional information

Optical images show that particles are acicular to rectangular in shape. Note that particle size is performed on the test substance after being freeze dried and particle morphology and size may be a direct result of the freeze drying process.