Manganese dinitrate

Oxidising properties

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

Guideline:

EU Method A.17 (Oxidising Properties (Solids))

Deviations:

no

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

Manganese dinitrate tetrahydrate

IUPAC Name:

Manganese dinitrate tetrahydrate

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)

Test results (Oxidising solids) 1

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

Test results (Oxidising solids) 2

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

Test results (Oxidising solids) 3

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.