Titanium oxide sulphate

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010-04-16

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP guideline study reliable without restrictions

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: CIPAC MT 187: Particle Size Analysis by Laser Diffraction

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

other: ISO13320-1: Particle Size Analysis - Laser Diffraction Methods

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

signed, 2009-10-29

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

123334-00-9

Cas Number:

123334-00-9

IUPAC Name:

123334-00-9

Constituent 2

Reference substance name:

Titanium oxide sulphate

EC Number:

237-523-0

EC Name:

Titanium oxide sulphate

Cas Number:

13825-74-6

Molecular formula:

O5STi

IUPAC Name:

Titanium(IV) Oxysulfate

Details on test material:

- Name of test material (as cited in study report): Titanium(IV)oxysulfate – sulphuric acid hydrate
- Molecular formula (if other than submission substance): TiOSO4 * x H2SO4 * x H2O
- Substance type: White solid
- Storage condition of test material: Ambient temperature, dry, tightly closed

No further details were stated.

Results and discussion

Particle size

Particle size 1

Percentile:

D50

Mean:

44.87 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:

D10

Mean:

10.99 µm

St. dev.:

0.17

Particle size 3

Percentile:

D50

Mean:

44.87 µm

St. dev.:

0.1

Particle size 4

Percentile:

D90

Mean:

148.37 µm

St. dev.:

3.85

Any other information on results incl. tables

Individual Results

The determination of the particle size distribution by laser diffraction was done with test item without sieving. Distributions D50:

1^sttest series:               D₅₀ = 44.80 µm

2^ndtest series:              D₅₀ = 44.94 µm

Distributions D10:

1^sttest series:               D₁₀ = 10.87 µm

2^ndtest series:              D₁₀ = 11.11 µm

Distributions D90:

1^sttest series:               D₉₀ = 151.09 µm

2^ndtest series:              D₉₀ = 145.64 µm

Applicant's summary and conclusion

Conclusions:

The median particle size D50 of the test items deduced from the particle size distributions is 44.87 µm.

Executive summary:

The purpose of the study was to determine the particle size distribution of test item titanium(IV)oxysulfate – sulphuric acid hydrate - (molecular formula TiOSO4 x H2SO4 x H2O; CAS No. 123334 -00 -9). The study followed the protocol as given by OECD Guideline 110.

The median particle size D50 of the test item deduced from the particle size distributions is 44.87 µm.

The particle size D10 of the test item deduced from the particle size distributions is 10.99 µm.

The particle size D90 of the test item deduced from the particle size distributions is 148.37 µm.