Registration Dossier

Administrative data

Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011-04-26 to 2011-05-12
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline-conform study under GLP without deviations.

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
Titanium(IV) oxysulfate
IUPAC Name:
Titanium(IV) oxysulfate
Constituent 2
Chemical structure
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 oxide sulphate
Details on test material:
- Name of test material (as cited in study report): Titanium(IV) oxysulfate
- Substance type: inorganic
- Physical state: Solid, fine crystals with lumps
- Analytical purity: 99.5%
- Impurities (identity and concentrations): no data
- Purity test date: no data
- Lot/batch No.: 1286671 (filling code 52307269)
- Expiration date of the lot/batch: June 15, 2012
- Stability under test conditions: no data, assumed to be stable
- Storage condition of test material: At room temperature at about 20 °C

Study design

Contact with:
powdered cellulose

Results and discussion

Test results (Oxidising solids)open allclose all
Sample tested:
test mixture (not specified)
Remarks:
migrated information
Parameter:
maximum burning rate
Result:
0.444 other: mm/s (migrated information)
Remarks on result:
other: 10% / 90% Titanium(IV) oxysulfate/cellulose mixture
Sample tested:
reference mixture (not specified)
Remarks:
migrated information
Parameter:
maximum burning rate
Result:
0.552 other: mm/s (migrated information)
Remarks on result:
other: 50% of barium nitrate with cellulose

Any other information on results incl. tables

During the first main test the 10% / 90% Titanium(IV) oxysulfate/cellulose mixture showed a burning rate of 0.444 mm/s. After the test unaltered test item remained under the surface of the pile. All other mixtures burned up to 10 seconds without ignition source but the flame did not spread.

For more detailed results, see data table attached.

Applicant's summary and conclusion

Interpretation of results:
other: no oxidising properties
Remarks:
Migrated information
Conclusions:
Titanium(IV) oxysulfate is considered to have no oxidizing properties.
Executive summary:

The determination of the oxidizing properties of Titanium(IV) oxysulfate was performed in accordance with theDirective 92/69,Publication No. L383, December 1992 and Council Regulation (EC) No. 440/2008, Methods for the determination of physico-chemical properties, A.17 “Oxidizing Properties (solids)”.

During the preliminary test the Titanium(IV) oxysulfate/cellulose mixture was glowing slightly, but did not ignite. The barium nitrate/cellulose mixture during the same test burned for 52 sec with a greenish, blazing flame.

During the first main test the 10% / 90% Titanium(IV) oxysulfate/cellulose mixture showed a burning rate of 0.444 mm/s. After the test unaltered test item remained under the surface of the pile. All other mixtures burned up to 10 seconds without ignition source but the flame did not spread. Details of the burning behavior of these mixtures are not given here, but are part of the raw data.

Five additional measurements were performed to measure the burning rate of the 10% / 90% Titanium(IV) oxysulfate/cellulose mixture. The results of all six determinations are summarized in Table 1.

The fastest reference mixture was the one containing 50% of barium nitrate and had a burning rate of 0.552 mm/s. Therefore all burning rates of the relevant test item mixtures are smaller than the burning rate of the reference mixture. In conclusion, the test item has no oxidizing properties.