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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:
other: According to ISO 13320-1. Laser diffraction is the well experienced standard procedure for solids to determine particle size distribution.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: ISO 13320-1
Principles of method if other than guideline:
Laser diffraction particle sizing
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
2,4-dioxo-3-oxatricyclo[7.3.1.0⁵,¹³]trideca-1(13),5,7,9,11-pentaene-8,10-dicarboxylic acid
EC Number:
619-817-4
Cas Number:
52671-72-4
Molecular formula:
C14H6O7
IUPAC Name:
2,4-dioxo-3-oxatricyclo[7.3.1.0⁵,¹³]trideca-1(13),5,7,9,11-pentaene-8,10-dicarboxylic acid

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
3.325 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
0.708 µm
St. dev.:
0.05
Percentile:
D50
Mean:
3.325 µm
St. dev.:
0.43
Percentile:
D90
Mean:
12.534 µm
St. dev.:
2.67

Any other information on results incl. tables

Given standard deviation is based on the general experience with the method. The estimated values are typical standard deviations:

D10: 4 % of D10 (minimum value 0.05 µm)

D50: 13 % of D50 (minimum value 0.1 µm)

D90: 29 % of D90 - D50

Applicant's summary and conclusion