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Diss Factsheets

Physical & Chemical properties

Flammability

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Description of key information

Ammonium sodium vanadium oxide can be designated as non-flammable.
Ammonium sodium vanadium oxide is not pyrophoric.
Ammonium sodium vanadium oxide does not emit flammable gases in contact with water.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

Flammability of solids

In accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1, testing of flammability is not considered to be required for ammonium sodium vanadium oxide as this is a form of vanadium that is already oxidized and has an oxygen content of 43 %. Furthermore, testing of flammability is not considered to be required for inorganic oxides in which the cation is in its highest possible oxidation state and which therefore are incapable of further reaction with oxygen. It can thus be designated as non-flammable. (Guidance on information requirements and chemical safety assessment Chapter R.7a: Endpoint specific guidance, section R.7.1.10.3). In addition, long-term industrial experience in handling shows that ammonium sodium vanadium oxide is not flammable.

Pyrophoric properties

Testing for pyrophoric properties of solids is not considered to be required, since ammonium sodium vanadium oxide is stable at ambient temperature. It also does not contain any chemical groups that might lead to spontaneous ignition a short time after coming in contact with air at room temperature (circa 20 °C). Furthermore, long-term industrial experience in handling shows that ammonium sodium vanadium oxide does not ignite in contact with air (in accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1).

Flammability in contact with water

Testing for flammability in contact with water is not considered to be required, because ammonium sodium vanadium oxide does not contain groups that might lead to a reaction with water or damp air, leading to the development of dangerous amounts of gas or gases which may be highly flammable. Furthermore, long-term industrial experience in practical handling of ammonium sodium vanadium oxide shows that it does not react with water, and recent experimental testing for water solubility has also not reported any formation of gases (in accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1).

Justification for classification or non-classification

Ammonium sodium vanadium oxidedoes not need to be classified for physico-chemical properties according to Directive 67/548 EEC and CLP Regulation (EC) No 1272/2008:

flammabilityis considerednon-relevant based on chemical structure and lack of functional groups;

explosive properties are considered non-relevant based on lack offunctional groups;

oxidising properties are considered non-relevant oxide based on chemical structure and oxygen content.