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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, available as unpublished report acceptable without restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Version / remarks:
Screening Test
Principles of method if other than guideline:
The method used is based on a procedure designed to comply with that given in 'Particle size distribution, fibre length and diameter distribution', June 1996 European Commission technical guidance document, which satisfies the requirements of OECD Guideline 110.
GLP compliance:
yes (incl. QA statement)
Type of method:
sieving

Test material

Constituent 1
Chemical structure
Reference substance name:
Platinum dioxide
EC Number:
215-223-0
EC Name:
Platinum dioxide
Cas Number:
1314-15-4
Molecular formula:
O2Pt
IUPAC Name:
Platinum dioxide
Constituent 2
Chemical structure
Reference substance name:
Platinum(IV) oxide hydrate
Cas Number:
52785-06-5
Molecular formula:
PtO2.nH2O
IUPAC Name:
Platinum(IV) oxide hydrate
Test material form:
not specified
Details on test material:
- Physical decsription: Black solid
- Purity 81.17% (as Platinum)
- Batch Number 7024/00-09
- Storage and Handling: stored at room temperature in the dark

Results and discussion

Particle size distribution at different passages
No.:
#1
Size:
<= 100 µm
Distribution:
99.4 %

Any other information on results incl. tables

The results of the sieving procedure are shown below:

 Measurement

Result 

Mass of test item transferred to sieve 

10.18g

 Mass of test item passed through sieve

10.12g

Proportion of test item <100µm 

99.4%

Applicant's summary and conclusion

Conclusions:
The proportion of platinum dioxide (hydrated solid) <100 µm was 99.4 %.
Executive summary:

This is a GLP compliant, guideline study considered suitable for use as the key study for this endpoint. The proportion of platinum dioxide (hydrated solid) < 100 µm was 99.4 %.