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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2007-10-24
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
GLP compliance:
yes (incl. QA statement)
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Molybdenum dioxide
EC Number:
242-637-9
EC Name:
Molybdenum dioxide
Cas Number:
18868-43-4
Molecular formula:
MoO2
IUPAC Name:
dioxomolybdenum
Details on test material:
- Name of test material (as cited in study report): molybdenum dioxide
- Physical state: solid, red-brown powder
- Analytical purity: >99.99%
- Impurities (identity and concentrations): no impurities >0.1%
- Purity test date: 2007-07-24
- Lot/batch No.: D1308 DRO
- Expiration date of the lot/batch: 2010-07-16
- Storage condition of test material: at ambient temperature, dry, closed container
No further details are given.

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:
other: L50
Mean:
229.4 µm
St. dev.:
8.68
Percentile:
other: L10
Mean:
5.7 µm
St. dev.:
0.3
Percentile:
other: L90
Mean:
401.9 µm
St. dev.:
8.37

Applicant's summary and conclusion