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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:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Principles of method if other than guideline:
Laser diffraction method according to ISO 13320
GLP compliance:
yes (incl. QA statement)
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
8-(benzoyloxy)naphthalen-1-yl benzoate
EC Number:
810-797-4
Cas Number:
331711-99-0
Molecular formula:
C24 H16 O4
IUPAC Name:
8-(benzoyloxy)naphthalen-1-yl benzoate
Constituent 2
Reference substance name:
Thane 003-6
IUPAC Name:
Thane 003-6
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Name of test material (as cited in study report): 1,8-Naphthalenediol , 1,8-dibenzoate
Physical state: solid
Analytical purity: 99.0 g / 100 g via 1H-NMR spectroscopy
Lot/batch No.: CHPC021814NDB
Expiration date of the lot/batch: Jul29, 2014
Storage condition of test material: Room temperature, protected from moisture

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
31 µm
Percentile:
D50
Mean:
167 µm
Percentile:
D90
Mean:
521 µm
Percentile:
other: D[3,2]
Mean:
70 µm
Percentile:
other: D[4,3]
Mean:
229 µm
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
< 4 µm
Distribution:
0.14 other: vol%
No.:
#2
Size:
< 10 µm
Distribution:
1.78 other: vol%
No.:
#3
Size:
< 100 µm
Distribution:
33.86 other: vol%

Any other information on results incl. tables

Results in detail

measurement

d(0.1)

[μm]

d(0.5)

[μm]

d(0.9)

[μm]

D[3,2]

[μm]

D[4,3]

[μm]

1

32

164

502

72

222

2

30

169

542

68

237

mean*

31

167

521

70

229

 

measurement

<4 μm

[vol%]

<10 μm

[vol%]

<100 μm

[vol%]

1

0.10

1.59

33.98

2

0.18

1.98

33.73

mean*

0.14

1.78

33.86

 

*) Using all single measuring points from the measurements 1 and 2, a new distribution was calculated, giving the mean values for each parameter.

0[3,2): mean by surface (Sauter)

0[4,3): mean by volume (De Brouker)

Applicant's summary and conclusion