2,2-dimethylpropane-1,3-diamine

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Remarks:

melting point has been determined to be 28-30 °C

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

09 Jan 2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Specific details on test material used for the study:

- Name of test item (as cited by study report): Neopentandiamin

Key result

Test procedure:

burning rate test: preliminary screening test

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

Remarks:

no metal powder

Interpretation of results:

GHS criteria not met

Reference 2

Endpoint:

flammable gases

Type of information:

experimental study

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods with acceptable restrictions

Principles of method if other than guideline:

Guideline unknown.

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of test item (as cited by data sheet): Neopentandiamin

Parameter:

lower explosion limit

Remarks:

46.5 °C

Value:

1.4 vol%

Parameter:

upper explosion limit

Remarks:

83 °C

Value:

8.7 vol%

Interpretation of results:

GHS criteria not met

Description of key information

The substance is a solid at room temperature, it has a low melting point (28 - 30 °C).

From a recent study, it was concluded that the test 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.

Therefore the substance is not a highly flammable solid.

If the substance would be assessed as a liquid, the flammability of the test substance has to be derived from its flash point. The flash point of the test substance was determined to be 52 °C. In this case the test substance have to be considered as a flammable liquid (Cat. 3).

In another study the explosion limits were determined: lower explosion limit: 46.5 °C, 1.4 vol.%; upper explosion limit: 83 °C, 8.7 vol.%. Vapours may form explosive mixtures with air when the substance is heated above 46.5 °C.

The substance has no pyrophoric properties and does not liberate flammable gases on contact with water.

It is not a self-heating substance.

Key value for chemical safety assessment

Flammability:

flammable

Justification for classification or non-classification

The substance is not a highly flammable solid in accordance with EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation No. (EC) 1272/2008.

If the substance would be assessed as a liquid the test substance have to be classified as a flammable liquid Category 3: Flammable liquid and vapour (H226) in accordance with EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation No. (EC) 1272/2008.