Naphthenic acids, copper salts

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a liquid

Reference 2

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 substance is known to be soluble in water to form a stable mixture

Reference 3

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

Description of key information

Testing of flammability does not appear scientifically necessary according to Regulation (EC) No 1907/2006, Annex XI, Section 1.

- Testing of flammability of solids (A.10) and gases (A.11) is not considered to be required, since the substance is a liquid.

- Testing for flammability in contact with water (A.12) is not considered to be required, because naphthenic acids, copper salts 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

- Testing of pyrophoric properties of solids and liquids (A.13) is not considered to be required, since naphthenic acids, copper salts is stable at ambient temperature. It does not contain any chemical group that might lead to spontaneous ignition a short time after coming in contact with air at room temperature (approx. 20 °C)

Key value for chemical safety assessment

Flammability:

flammable

Additional information

Flammability

In accordance with Regulation (EC) No 1907/2006, Annex XI, Section 2, testing of flammability is techically not possible for naphthenic acids, copper salts as it is an inorganic viscous liquid paste with a melting range of -37 °C to -30 °C. However the legal classification as `flammable liquid category 3´ was adopted

Pyrophoric properties

Testing for pyrophoric properties of liquids is not considered to be required, since naphthenic acids, copper salts is stable at ambient temperature. It 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 naphthenic acids, copper salts 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 naphthenic acids, copper salts 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 naphthenic acids, copper salts 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 1.2).

Justification for classification or non-classification

The classification of naphthenic acids, copper salts as flammable liquid Category 3 (H226) is in line with the binding harmonised classification of naphthenic acid, copper salts (Index No. 029 -003 -00 -5).