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self-heating substances / mixtures
Type of information:
experimental study
Adequacy of study:
key study
Study period:
07 Feb 2018 - 09 Feb 2018
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)
Version / remarks:
Rev. 6 (2015)
GLP compliance:
Specific details on test material used for the study:
Key result
Test procedure:
100 mm sample cube at 140°C
negative outcome (no effect observed)

After the experiment the consistency of the sample was unchanged, i.e. no reaction and/or decomposition of the test item was observed.


Interpretation of results:
other: not classified based on GHS or CLP criteria
The substance is not self-heating.

Executive summary:

In a GLP study according to UN Test N.4, a negative result was obtained using a 10 cm sample cube at 140°C. From this it was concluded that Alcamizer 5 is not a self-heating substance.

Description of key information

In a GLP-compliant study performed in accordance with EC A.10, the substance has been determined to be 'not highly flammable' by ignition.

Not a self-heating substance (UN Test N.4, GLP)

The substance lacks structural alerts for pyrophoricity and for flammability in contact with water. Furthermore, experience in handling showed that the substance does not react with water nor ignite spontaneously when coming into contact with air at normal temperatures.

Key value for chemical safety assessment

non flammable

Additional information

Justification for classification or non-classification

Classification or non-classification according to CLP Regulation (EC) No. 1272/2008:

-Because not flammable by ignition, no classification is required for the hazard 'Flammable solid'.

-No classification is required for the hazard 'Pyrophoric solids' based on the available information.

-Based on the available information, no classification for the hazard 'Substances which in contact with water emits flammable gases'.

-Not a self-heating substance (negative UN Test N.4 at 140°C).