Tris(nitrato-O)nitrosylruthenium

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP compliant, guideline study, available as unpublished report, acceptable without restrictions

Qualifier:

equivalent or similar to guideline

Guideline:

UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)

Deviations:

yes

Remarks:

Electrical resistance of the ignition wire used was 3.9Ω/m a deviation from the electrical resistance of 6.0 ± 0.5 Ω/m specified in the test O.1

GLP compliance:

yes (incl. QA statement)

Contact with:

other: Potassium bromate and cellulose

Duration of test (contact time):

3 min

Key result

Sample tested:

4:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

3.8 s

Results of 3:7 (by mass) reference mixture of potassium bromate and cellulose
Test Number	Burning time (s)	Observations
1	149	Vigorous orange and blue flame with pale blue sparks and spluttering leaving a residue of dark grey ash
2	135	Vigorous orange and blue flame with pale blue sparks and spluttering leaving a residue of dark grey ash
3	106	Vigorous orange and blue flame with pale blue sparks and spluttering leaving a residue of dark grey ash
4	104	Vigorous orange and blue flame with pale blue sparks and spluttering leaving a residue of dark grey ash
5	118	Vigorous orange and blue flame with pale blue sparks and spluttering leaving a residue of dark grey ash
mean burning time (s) = 122
Results of 3:2(by mass) reference mixture of potassium bromate and cellulose
Test Number	Burning time (s)	Observations
1	19	Large pale blue flame produced immediately turning to orange and blue flame leaving pale grey smoke and dark grey reside
2	21	Large pale blue flame produced immediately turning to orange and blue flame leaving pale grey smoke and dark grey reside
3	21	Large pale blue flame produced immediately turning to orange and blue flame leaving pale grey smoke and dark grey reside
4	22	Large pale blue flame produced immediately turning to orange and blue flame leaving pale grey smoke and dark grey reside
5	22	Large pale blue flame produced immediately turning to orange and blue flame leaving pale grey smoke and dark grey reside
Mean buring time (s) - 21
Results of 4:1 (by mass) test item and cellulose mixture
Test Number	Burning time (s)	Observations
1	6	Large bright orange flame leaving a dark grey ash
2	3	Large bright orange flame leaving a dark grey ash
3	3	Large bright orange flame leaving a dark grey ash
4	4	Large bright orange flame leaving a dark grey ash
5	3	Large bright orange flame leaving a dark grey ash
Mean burning time (s) = 3.8

As the mean burning rate of the 4:1 (by mass) test item and cellulose mixture is faster than the mean burning rate of the 3:2 reference mixture (by mass) of potassium bromate and cellulose, Tris(nitrato-O)nitrosylruthenium is classified in Category 1 for oxidising solids in accordance with CLP regulations

Interpretation of results:

Category 1 (strong oxidising solids) based on GHS criteria

Conclusions:

As the mean burning rate of the 4:1 (by mass) test item and cellulose mixture is faster than the mean burning rate of the 3:2 reference mixture (by mass) of potassium bromate and cellulose, tris(nitrato-O)nitrosylruthenium is classified in Category 1 for oxidising solids in accordance with CLP regulations.

Executive summary:

This is a GLP compliant, guideline study which is considered suitable for use for this endpoint. As the mean burning rate of the 4:1 (by mass) test item and cellulose mixture is faster than the mean burning rate of the 3:2 reference mixture (by mass) of potassium bromate and cellulose, tris(nitrato-O)nitrosylruthenium is classified in Category 1 for oxidising solids in accordance with CLP regulations.

Description of key information

Tris(nitrato-O)nitrosylruthenium is classified in Category 1 for oxidising solids in accordance with CLP regulations.

Key value for chemical safety assessment

Oxidising properties:

oxidising

Additional information

Atwal and Tremain (2011) is a GLP compliant study following UN method O.1, which is considered suitable for use as the key study for this endpoint. As the mean burning rate of the 4:1 (by mass) test item and cellulose mixture is faster than the mean burning rate of the 3:2 reference mixture (by mass) of potassium bromate and cellulose, tris(nitrato-O)nitrosylruthenium is classified in Category 1 for oxidising solids in accordance with CLP regulations.

Justification for classification or non-classification

As the mean burning rate of the 4:1 (by mass) test item and cellulose mixture is faster than the mean burning rate of the 3:2 reference mixture (by mass) of potassium bromate and cellulose, tris(nitrato-O)nitrosylruthenium is classified in Category 1 for oxidising solids in accordance with CLP regulations