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Physical & Chemical properties

Oxidising properties

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Administrative data

Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010-01-19
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to current guideline

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

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

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Sponsor's identification: Mn(NO3)2 • 4H2O
Description : pink solid
Storage conditions: approximately 4°C, over silica gel in the dark

Study design

Contact with:
powdered cellulose

Results and discussion

Test results (Oxidising solids)open allclose all
Sample tested:
test mixture (not specified)
Parameter:
maximum burning rate
Result:
0.707 other: mm/s
Remarks on result:
other: Fastest burning rate mixture = Test material:Cellulose ratio, 70:30
Sample tested:
test mixture (not specified)
Parameter:
maximum burning rate
Result:
0.228 other: mm/s
Remarks on result:
other: Second fastest burning rate mixture = Test material:Cellulose ratio, 60:40
Sample tested:
test mixture (not specified)
Parameter:
maximum burning rate
Result:
0.181 other: mm/s
Remarks on result:
other: Third fastest burning rate mixture = Test material:Cellulose ratio, 50:50

Any other information on results incl. tables

Preliminary Test

The cone ignited and burnt with a glowing smoulder. The cone self-extinguished after 17 seconds leaving a dark grey residue that emitted copious smoke.

Main Test:

Reference Mixtures

% Barium Nitrate

Observations

Burning Time(s)

Burning Rate (mm/s)

10

The pile burnt with a blue/orange flame producing grey smoke and leaving dark grey ash.

457

0.438

20

The pile burnt with a blue/green/orange flame, producing grey smoke and leaving dark grey ash. The pile self-extinguished after propagating combustion over 175mm in 510 seconds.

-

-

30

The pile burnt with an orange/green flame, producing grey smoke and leaving grey ash.

594

0.337

40

The pile burnt with an orange/green flame, producing grey smoke and leaving grey ash.

484

0.413

50

The pile burnt with an orange/green flame, producing grey smoke and leaving grey ash.

366

0.546

60

The pile burnt with an orange/green flame, producing smoke and leaving light grey ash.

315

0.635

70

The pile burnt with an orange/green flame, producing smoke and leaving light grey ash.

381

0.525

80

The pile burnt with an orange/green flame but self-extinguished after propagating combustion over 4mm in 35 seconds.

-

-

90

The pile ignited with an orange/blue flame which self-extinguished after approximately 10 seconds without propagating combustion.

-

-

Maximum burning rate = 0.635 mm/s.

Test Material :Cellulose Mixtures

% Test Material

Observations

Burning Time(s)

Burning Rate (mm/s)

10

The pile ignited with an orange flame which self-extinguished the pile smouldered (producing grey smoke) over 5 mm in 704 seconds before self-extinguishing, leaving dark grey ash

-

-

20

The pile ignited with an orange flame which self-extinguished, the pile smouldered, producing grey smoke and leaving dark grey ash.

2065

0.097

30

The pile ignited with an orange flame which self-extinguished, the pile smouldered, producing grey smoke and leaving dark grey ash.

1873

0.107

40

The pile smouldered, producing grey smoke and leaving dark grey ash.

1358

0.147

50

The pile smouldered, producing grey smoke and leaving dark grey ash.

1128

0.177

60

The pile smouldered, producing grey smoke and leaving dark grey ash.

732

0.273

70

The pile smouldered, producing grey smoke and leaving dark grey ash.

507

0.394

80

The pile smouldered but self-extinguished without propagating combustion.

-

-

90

The pile failed to ignite.

-

-

Maximum burning rate = 0.394 mm/s.
Maximum burning rate of reference mixtures = 0.695 mm/s.

Fastest Burning Rate Mixture

Test Material : Cellulose Ratio = 70:30

Test

Observations

Burning Time(s)

Burning Rate (mm/s)

1

The pile smouldered, producing grey smoke and leaving dark grey ash.

352

0.568

2

The pile smouldered, producing grey smoke and leaving dark grey ash.

445

0.449

3

The pile smouldered, producing grey smoke and leaving dark grey ash.

313

0.639

4

The pile smouldered, producing grey smoke and leaving dark grey ash.

283

0.707

5

The pile smouldered, producing grey smoke and leaving dark grey ash. The pile self-extinguished after propagating combustion over 173mm in 578 seconds.

-

-

6

The pile smouldered, producing grey smoke and leaving dark grey ash.

331

0.604

Maximum burning rate = 0.707 mm/s.
Maximum burning rate of reference mixtures = 0.635 mm/s

Second Fastest Burning Rate Mixture

Test Material : Cellulose Ratio = 60:40

Test

Observations

Burning Time(s)

Burning Rate (mm/s)

1

The pile smouldered, producing grey smoke and leaving dark grey ash.

949

0.211

2

The pile smouldered, producing grey smoke and leaving dark grey ash.

879

0.228

3

The pile smouldered, producing grey smoke and leaving dark grey ash.

975

0.205

4

The pile smouldered, producing grey smoke and leaving dark grey ash.

1031

0.194

5

The pile smouldered, producing grey smoke and leaving dark grey ash.

1077

0.186

6

The pile smouldered, producing grey smoke and leaving dark grey ash.

1023

0.196

Maximum burning rate = 0.228 mm/s.
Maximum burning rate of reference mixtures = 0.635 mm/s.

Third Fastest Burning Rate Mixture

Test Material : Cellulose Ratio = 50:50

Test

Observations

Burning Time(s)

Burning Rate (mm/s)

1

The pile smouldered, producing grey smoke and leaving dark grey ash.

1113

0.180

2

The pile smouldered, producing grey smoke and leaving dark grey ash.

1183

0.169

3

The pile smouldered, producing grey smoke and leaving dark grey ash.

1192

0.168

4

The pile smouldered, producing grey smoke and leaving dark grey ash.

1272

0.157

5

The pile smouldered, producing grey smoke and leaving dark grey ash.

1105

0.181

6

The pile smouldered, producing grey smoke and leaving dark grey ash.

1193

0.168

Maximum burning rate = 0.181 mm/s.
Maximum burning rate of reference mixtures =0.635 mm/s.

Applicant's summary and conclusion

Interpretation of results:
other: oxidising: maximum burning rate equal or higher than reference mixture
Conclusions:
The test material has been determined to have oxidising properties as the test material/cellulose mixtures propagate combustion at a rate greater than or equal to that of the barium nitrate/cellulose mixtures.