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Diss Factsheets

Physical & Chemical properties

Oxidising properties

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Administrative data

oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15/05/2008 - 29/06/2008
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference Type:
study report
Report date:

Materials and methods

Test guideline
according to guideline
EU Method A.17 (Oxidising Properties (Solids))
Version / remarks:
The purpose of this study was the determination of the oxidizing properties of the test item according to the consolidated version of Council Directive 67/548/EEC Annex V,
Part A: Methods for the determination of physico-chemical properties. A. 17. Oxidizing properties.
GLP compliance:

Test material

Constituent 1
Reference substance name:
EC Number:
EC Name:
Details on test material:
- Sample-No: AR-143-MTP
- Empirical formula: C78H66N2010P2S2
- Molecular weight: 1317.48 glmol
- Purity: > 99 % [a/a] Prima 1
- Physical state: Red solid
- Storage conditions: ambient temperature

Study design

Contact with:
other: Cellulose microcrystalline (Avicel(c))
Duration of test (contact time):
>= 5 - <= 15 min

Results and discussion

Test results (Oxidising solids)
Key result
Sample tested:
test mixture (not specified)
maximum burning rate
0.79 mm/s
Remarks on result:
other: The maximum burning rate of the reference mixture of cellulose and barium nitrate was 0.84 mm/s.

Applicant's summary and conclusion

The test item has no oxidizing properties in the sense of the consolidated version of Council Direc- tive 67/548/EEC Annex V, Method A.17.
Executive summary:

Preliminary test:

Two test mixtures with the test item and cellulose 2:1 burned not down, the flame extinguished after approximately one second.

Three test mixtures with barium nitratelcellulose 2:1 burned down completely in 85, 88 and 97 s. Due to the results of the preliminary test the full test had to be performed.

Main test:

Five tests were performed for the reference mixture with40, 50, 55, 60 and 70 percent oxidizer.

The highest burning rate 0.84 mm/s was found for the mixture with 55% oxidizer
Mixtures of the test item with cellulose were prepared in
10%-increments. Additional tests with 5 and 100 wt. % test item and pure cellulose were performed.

Due to the fact that the mixture with 20% of test item burned slower and mixtures with 30 and 50% the flame went out or could not be ignited, no tests were performed for mixtures with 40, 60, 70, 80 and 90%.

Six tests were performed for the mixtures with the highest burning rates of 5 and 10 wt.% of test item.

The maximum burning rate of the mixtures of the test item and cellulose (0.79 mm/s) was less than the maximum burning rate of the reference mixture of cellulose and barium nitrate (0.84 mm/s)