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Physical & Chemical properties

Flammability

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Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to ONU method N1, close to CE method A10.
Qualifier:
equivalent or similar to
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:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
no ignition on contact with air (not further specified)
Remarks:
corresponding to 'no' in migrated source record.
Test procedure:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
no ignition on contact with air (not further specified)
Remarks:
corresponding to 'no' in migrated source record.

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

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).

Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to ONU method N1, close to CE method A10.
Qualifier:
equivalent or similar to
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:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
no ignition on contact with air (not further specified)
Remarks:
corresponding to 'no' in migrated source record.
Test procedure:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
no ignition on contact with air (not further specified)
Remarks:
corresponding to 'no' in migrated source record.

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

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).

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:
other: Guideline study
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
Deviations:
no
GLP compliance:
no
Test procedure:
burning time (test type not further specified)
Remarks:
or specified in description of method (migrated information)
Burning time:
0 s
Test procedure:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
no ignition on contact with air (not further specified)
Remarks:
corresponding to 'no' in migrated source record.
Test procedure:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
no ignition on contact with air (not further specified)
Remarks:
corresponding to 'no' in migrated source record.

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:
non flammable
Remarks:
Migrated information
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.
Endpoint:
flammable solids
Data waiving:
other justification
Justification for data waiving:
other:
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
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 a flammability test with cobalt stearate (oxidation state +2) did not show flammable properties, since cobalt dichloride 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 dichloride 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 dichloride 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 (in accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1) .

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 (in accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1).

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 (in accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1.2).

Justification for classification or non-classification

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