Amines, C12-18-alkyldimethyl

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

self-heating substances / mixtures

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a liquid

Reference 2

Endpoint:

pyrophoric liquids

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

other:

Reference 3

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 experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

Reference 4

Endpoint:

flammable solids

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

non-flammable; not pyrophoric; no flammable gases in contact with water; not self-heating

Key value for chemical safety assessment

Flammability:

not classified

Additional information

The liquid test item is non-flammable based on flash point and boiling point.

Ignition on contact with air:
C12-18-DMA is according to the Guidance on the Application of the CLP Criteria (1) known from practical handling to be not pyrophoric. It is produced, handled and stored under normal conditions in air without any observation in respect to pyrophoric properties. Therefore, there is no likelihood that the test item possesses pyrophoric properties. Further, an auto-ignition temperature of 235 °C at atmospheric pressure was derived for C12-18-DMA, demonstrating stability in air. According to these facts, further testing in respect to pyrophoric properties is not required.

Release of flammable gases in contact with water
The test item does according to the UN Manual of Tests and Criteria (2) show one or more of the following properties:
1. The chemical structure of the substance does not contain metals or metalloids;
2. Experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured in water or washed with water;
3. The substance is known to be soluble in water to form a stable mixture.
Therefore, it is considered as not forming flammable gases in contact with water. No further testing is required.

According to (1), the phenomenon of self-heating applies only to solids. Liquids or substances and mixtures with a low melting point (< 160 °C) should not be considered for classification as self-heating. The surface of liquids is not large enough for reaction with air, and the available test method is not applicable to liquids. Therefore, liquids and low melting solids are not classified as self-heating.

(1) Guidance on the Application of the CLP Criteria; ECHA-17-G-21-EN, July 2017
(2) UN Manual of Tests and Criteria; Seventh revised edition; United Nations 2019; Appendix 6 SCREENING PROCEDURES