Cobalt, borate propionate complexes

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

yes

Remarks:

according to ONU method N1, close to CE method A10.

GLP compliance:

yes

Test procedure:

burning rate test: preliminary screening test

Burning time:

0 s

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

No burning times available because the primary screening tests is enough to conclude that the substance is non flammable.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

non flammable

Executive summary:

Preliminary screening test : The substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 4 minutes (test period), then the substance should not be considered as flammable and no further testing is required (no Burning rate test).

Reference 2

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

yes

Remarks:

Study done according ONU method N1, close to EU method A10.

GLP compliance:

yes

Test procedure:

burning rate test: preliminary screening test

Burning time:

0 s

Remarks on result:

flame passes the wetted zone

No burning time available because of the primary screening test. Primary screening test is enough to conclude that the substance is not flammable.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

Non flammable.

Executive summary:

Preliminary screening test : The substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 4 minutes (test period), then the substance should not be considered as flammable and no further testing is required (no Burning rate test).

Reference 3

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

2009-11-23 to 2009-11-23

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

no

Test procedure:

burning rate test: preliminary screening test

Burning time:

0 s

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

The test item showed no reaction when a flame was applied as ignition source at ambient temperature. The product melted.

The test item only showed an inflammation of the decomposition gases when a hot platinum wire was applied as ignition source at ambient temperature. The product melted.

Due to the fact that the pile could not be ignited with a flame, the main test was not necessary.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test item is not a highly flammable solid in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.10.
Due to the fact that the pile could not be ignited with a flame, the substance has not to be classified as flammable solid according to GHS.

Reference 4

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 5

Endpoint:

flammable solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Reference 6

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 :

- Testing of flammability of solids (A.10) and gases (A.11) is not considered to be required, since a flammability test with cobalt stearate (oxidation state +2) did not show flammable properties, since cobalt, borate propionate complexes represents an inorganic salt containing cobalt in the oxidised status (2+) and an anion of an acid which is less susceptible to any form of oxidation than stearic acid, it is less combustible than cobalt stearat.

- Testing for flammability in contact with water (A.12) is not considered to be required, because cobalt, borate propionate complexes 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 cobalt, borate propionate complexes 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:

not classified

Additional information

Flammability (solids)

A test on the flammability according to EC method A.10 was recently conducted for cobalt stearate in which cobalt is present in the oxidation state (+2), yielding a result of “not flammable”. Since the substance in question represents an inorganic salt containing cobalt in the oxidised status (2+) and an anion of an acid which is less susceptible to any form of oxidation than stearic acid, the substance is thus intrinsically less combustible than cobalt stearate.

Pyrophoric properties

Testing for pyrophoric properties of solids is not considered to be required, since this substance is stable at ambient temperature. This substance 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 the substance does not ignite in contact with air.

Flammability in contact with water

Testing of flammability in contact with water is not considered to be required, because the substance 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 the substance shows that it does not react with water, and recent experimental testing for water solubility has also not reported any formation of gases.

Justification for classification or non-classification

Cobalt, borate propionate complexes does not need to be classified according to CLP Regulation (EC) No 1272/2008 since it is not highly flammable.