Ammonium trivanadium octaoxide

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010-09-20 to 2010-09-24

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study

Qualifier:

according to guideline

Guideline:

other: Regulation UN-Test O.I

Deviations:

no

GLP compliance:

no

Contact with:

powdered cellulose

Duration of test (contact time):

3 min

Sample tested:

1:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

222 s

Sample tested:

4:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

247 s

Sample tested:

reference: 3:7 mixture potassium bromate + cellulose

Parameter:

mean burning time

Result:

83 s

Sample tested:

reference: 2:3 mixture potassium bromate + cellulose

Parameter:

mean burning time

Result:

56 s

Reference mixtures from Potassium bromate and Cellulose

Potassium bromate – Cellulose	Test 1	Test 2	Test 3	Test 4	Test 5	Average
3:7	83 s	90 s	93 s	86 s	65 s	83 s
2:3	54 s	67 s	51 s	64 s	44 s	56 s

Mixtures from test item and Cellulose

Test item – Cellulose	Test 1	Test 2	Test 3	Test 4	Test 5	Average
4:1	249 s	225 s	254 s	242 s	264 s	247 s
1:1	2469 s	211 s	227 s	212 s	215 s	222 s

In all tests with the test item and Cellulose in the ratio 4:1, the mixture decomposed flameless very slowly over the complete pile. In each case, the power supply was switched off after 3 min.

In all tests with the test item and Cellulose in the ratio 1:1, the mixture decomposed with a light bluish flame very slowly over the complete pile. In each case, the power supply was switched off after 3 min.

The mean burning times of the test item-to-Cellulose ratio 4.1 and 1:1 were significantly greater than the mean burning time of a 3:7 mixture of Potassium bromate and Cellulose.

Interpretation of results:

other: no oxidising properties

Remarks:

Migrated information

Conclusions:

Read-across from another form of vanadium with a higher oxygen content (i.e. V2O5 with an oxygen content of 44 %) to ammonium trivanadium octaoxide (oxygen content of 42 %) indicates that ammonium trivanadium octaoxide does not have any oxidising potential.

GHS and EC 1272/2008 (CLP-Guideline)
Ammonium trivanadium octaoxide does not need to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP-Guideline) Annex 1: 2.14.

UN-Transport regulations
Ammonium trivanadium octaoxide does not need to be classified as oxidizing solid in Division 5.1 according to the UN-Transport Regulations.

Key value for chemical safety assessment

Oxidising properties:

no

Additional information

In accordance with Regulation 1907/2006 , Annex VII, Section 7.13, Column 2, the study does not need to be conducted as ammonium trivanadium octaoxide does not contain a surplus of oxygen or any structural groups that have a tendency to react exothermally with combustible material (oxygen content is 42 %).

Furthermore, forms of vanadium with a higher oxygen content (i.e. V2O5) are not oxidising according to a study performed in accordance with transport of dangerous goods UN-Test O: Read-across from another form of vanadium with a higher oxygen content (i.e. V2O5 with an oxygen content of 44 %) to NH4V3O8 (oxygen content of 42 %) indicates that ammonium trivanadium octaoxide does not have any oxidising potential.

Justification for classification or non-classification

Oxidizing properties: Not considered relevant for ammonium trivanadium octaoxide based on chemical structure and oxygen content.

Ammonium trivanadium octaoxide does not need to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP-Guideline) Annex 1: 2.14.

Ammonium trivanadium octaoxide does not need to be classified as oxidizing solid in Division 5.1 according to the UN-Transport Regulations.