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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Flammability

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Administrative data

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Endpoint:
pyrophoric solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2004
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study (EU A. 10) with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.10 (Flammability (Solids))
Principles of method if other than guideline:
Determination of the combustion number (BZ) and burning time.
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.

When an ignition source (flame or hot wire) was applied at ambient temperature the powder burned with a flame. The product sustained combustion. The product showed liquidation.

The burning time over a distance of 100 mm was determined to be higher than 210 s. This leads to a maximum burning rate of 0.48 mm/s.

The tests showed that the combustion could be stopped by water.

The combustion behaviour of the product at ambient temperature is characterised by the combustion number BZ 5.

Due to the burning rate (< 0.48 mm/s) the substance has not to be classified as a "readily combustible solid", class 4.1, of the transport regulations.

Interpretation of results:
non flammable
Remarks:
Migrated information
Conclusions:
The combustion number of the test item is BZ 5, the combustion rate is <0.48 mm/s. The substance is therefore not a readily combustible solid class 4.1 of the transport regulations.
Executive summary:

The flammability of the test item was tested by determination of the combustion number and rate. The test item burned with propagation of the flame (combustion number BZ 5), the combustion rate is <0.48 mm/s. The test item is not a flammable solid.

Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2004
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study (EU A. 10) with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.10 (Flammability (Solids))
Principles of method if other than guideline:
Determination of the combustion number (BZ) and burning time.
Test procedure:
burning time (test type not further specified)
Remarks:
or specified in description of method (migrated information)
Burning time:
> 210 s
Remarks on result:
other: 100 mm

When an ignition source (flame or hot wire) was applied at ambient temperature the powder burned with a flame. The product sustained combustion. The product showed liquidation.

The burning time over a distance of 100 mm was determined to be higher than 210 s. This leads to a maximum burning rate of 0.48 mm/s.

The tests showed that the combustion could be stopped by water.

The combustion behaviour of the product at ambient temperature is characterised by the combustion number BZ 5.

Due to the burning rate (< 0.48 mm/s) the substance has not to be classified as a "readily combustible solid", class 4.1, of the transport regulations.

Interpretation of results:
non flammable
Remarks:
Migrated information
Conclusions:
The combustion number of the test item is BZ 5, the combustion rate is <0.48 mm/s. The substance is therefore not a readily combustible solid class 4.1 of the transport regulations.
Executive summary:

The flammability of the test item was tested by determination of the combustion number and rate. The test item burned with propagation of the flame (combustion number BZ 5), the combustion rate is <0.48 mm/s. The test item is not a flammable solid.

Description of key information

EU method A.10 (flammable solids)

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Justification for classification or non-classification