Vanadium oxide sulphate

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Reference 2

Endpoint:

pyrophoric solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Reference 3

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

Description of key information

Vanadium oxide sulphate is not considered as highly flammable.

Vanadium oxide sulphate is not pyrophoric.

Vanadium oxide sulphate 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 vanadium oxide sulphate, as this is a form of vanadium that is already oxidized and has an oxygen content of 49 %. Furthermore, long-term industrial experience in handling shows that vanadium oxide sulphate is not flammable. Thus, it is considered non-flammable.

Pyrophoricity

In accordance with Regulation (EC) No 1907/2006 Annex XI, Section 1, testing for pyrophoric properties of solids is not considered to be required, since vanadium oxide sulphate 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 (ca. 20 °C). Furthermore, long-term industrial experience in handling shows that vanadium oxide sulphate does not ignite (spontaneously) (i.e. the autoignition temperature is not below room temperature) in contact with air.

Flammability in contact with water

In accordance with Regulation (EC) No 1907/2006 Annex XI, Section 1, testing of flammability in contact with water is not considered to be required, because vanadium oxide sulphate 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. Recent experimental testing for water solubility has also not reported any formation of gases. Furthermore, long-term industrial experience in practical handling of vanadium oxide sulphate shows that it does not react with water and will not ignite with water or humid air.

Justification for classification or non-classification

Vanadium oxide sulphate does not need to be classified for flammability according to Directive 67/548 EEC and CLP Regulation (EC) No 1272/2008 based on chemical structure and the lack of functional groups.