Titanium diboride

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2007

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: In-house study performed according to OECD guidelines.

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)

Deviations:

no

GLP compliance:

no

Type of method:

determination of fibre length and diameter distributions

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

Titanium diboride

EC Number:

234-961-4

EC Name:

Titanium diboride

Cas Number:

12045-63-5

Molecular formula:

B2Ti

IUPAC Name:

titanium diboride

Test material form:

solid: particulate/powder

Remarks:

migrated information: powder

Details on test material:

Titanium diboride Batch No. 703M1, sponsored by ESK Ceramics GmbH & Co. KG
Purity see section 1.4

Results and discussion

Particle size

Particle size 1

Percentile:

D50

Mean:

1.8 µm

Remarks on result:

other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Particle size 2

Percentile:

other: D6

Mean:

0.1 µm

St. dev.:

0.002

Particle size 3

Percentile:

D50

Mean:

1.8 µm

St. dev.:

0.036

Particle size 4

Percentile:

other: D97

Mean:

5 µm

St. dev.:

0.1

Applicant's summary and conclusion

Conclusions:

The medium particle size of a typical technical grade titanium diboride powder is appr. 1.8 µm, the D97 is appr. 5 µm.