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Physical & Chemical properties

Flammability

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Endpoint:
substances / mixtures which in contact with water emit flammable gases
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013-10-24 - 2013-10-29
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.12 (Flammability (Contact with Water))
Deviations:
no
GLP compliance:
yes
Specific details on test material used for the study:
- Name of test material (as cited in study report): Dimethyl Piperazine
- Substance type: Clear liquid
- Physical state: Liquid
- Lot/batch No.: 1903-3/2012
Key result
Remarks on result:
no reaction with water observed

Test results - Initial tests:

Tests 1, 2 & 3 were not performed due to previous tests indicating that the sample does not react violently with water.

Test results - Final test:

No gas generation or spontaneous ignitions were observed during any of the tests. The samples does not generate flammable gases in contact with water and is therefore non-hazardous.

Comments: An initial, slight increase observed during the gas generation trend is due to the temperature increase observed when the sample is mixed with water.

Interpretation of results:
not classified based on GHS criteria
Conclusions:
No gas generation or spontaneous ignitions were observed during any of the tests. The sample does not generate flammable gases in contact with water and is therefore non-hazardous.
Endpoint:
pyrophoric liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013-10-29
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.13 (Pyrophoric Properties of Solids and Liquids)
Deviations:
no
GLP compliance:
yes
Specific details on test material used for the study:
- Name of test material (as cited in study report): Dimethyl Piperazine
- Substance type: Clear liquid
- Physical state: Liquid
- Lot/batch No.: 1903-3/2012
Key result
Test procedure:
ignition time on contact with air
Remarks on result:
no ignition on contact with air (not further specified)

No ignition or charring was observed during any test. The sample is therefore not pyrophoric.

Interpretation of results:
not classified based on GHS criteria
Conclusions:
No ignition or charring was observed during any test. The sample is therefore not pyrophoric.
Endpoint:
flammable liquids: obsolete as covered by section 'Flash point'
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a liquid

Description of key information

The test substance is concluded not to be pyrophoric, nor flammable in contact with water following GLP studies in accordance with EC test methods A.12 and A.13 (Younis, 2013). The flashpoint was determined to be 20°C at atmospheric pressure. Since the flashpoint is 20°C, the substance is classified as highly flammable.

Key value for chemical safety assessment

Flammability:
flammable

Additional information

Justification for classification or non-classification

The flash-point of the test substance was determined to be 20 °C at 100.6 kPa and is therefore within the range relevant for classification and labelling under the CLP regulation (<60 °C): the test substance should be classified as a category 2 flammable liquid with hazard statement H225: Highly flammable liquid and vapour (flashpoint < 23 °C and boiling point > 35 °C).

The test substance is concluded not to have pyrophoric properties nor to be flammable in contact with water.