(R)-5-isopropyl-2-methylcyclohexa-1,3-diene

Flammability

Link to relevant study record(s)

Reference

Reference 1

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

Reference 2

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

Reference 3

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

Reference 4

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 5

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 6

Endpoint:

pyrophoric 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

The test item is not classified as flammable solid, flammable in contact with water, pyrophoric or self-heating substance.

The test item has a flash point of 45.5 °C according to Regulation EC No. 440/2008 Method A.9. Flash Point, DIN EN ISO 13736 (2013).

Based on the available study, the test item has to be classified as flammable liquid of category 3, H226: flammable liquid and vapour, according to Regulation (EC) No 1272/2008, as amended for the tenth time in Regulation (EU) No 2017/776.

Key value for chemical safety assessment

Flammability:

flammable

Additional information

Flammable liquid

The test on the flammability (Regulation (EC) No 440/2008 method A.10) was not performed as the test item is a liquid. For liquids the primary value for ease of ignition is the flash point conducted using Method A9 ‘Flash Point Method’ of Council Regulation (EC) No 440/2008. The result of the Flash Point test is used to allocate a liquid substance into the appropriate flammability class.

The test item has a flash point of 45.5 °C.

 

Pyrophoric properties of liquids 

In accordance with section 2.9.4 Annex I of Regulation (EC) No 1272/2008 and ECHA guidance on the application of CLP Criteria section 2.10.4.2 the classification procedure for pyrophoric liquids need not to be applied when experience in manufacturing or handling shows that the substance or mixture does not ignite spontaneously when coming into contact with air at normal temperatures. Based on the experience in handling and use the substance is not known to ignite spontaneously when coming into contact with air at normal temperatures. Thus, no study was conducted.

 

Substances which, in contact with water, emit flammable gases 

In accordance with column 2 of REACH Annex VI and with Regulation (EC) No 1272/2008 Annex I section 2.12.4.1 the classification procedure for this hazard class need not be applied if:

a) The chemical structure of the substance or mixture does not contain metals or metalloids; or

b) Experience in handling and use shows that the substance or mixture does not react with water, e.g. the substance is manufactured with water or washed with water; or

c) The substance or mixture is known to be soluble in water to form a stable mixture.

Based on the experience in handling and use the substance does not react with water and in addition the test substance is not pyrophoric . Thus, no study was conducted.

 

Self-heating substances and mixtrures 

In accordance with ECHA guidance on the Application of the CLP Criteria section 2.11.4.2 and ECHA guidance on IR/CSA chapter R.7a section R7.1.10.7 the test does not to be conducted as in general liquids are not classified as self-heating since the phenomena applies only to solids and the test method is not applicable to liquids according to guidance on the Application of the CLP Criteria section 2.11.4.2.

 

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008

Based on the available study, the test item has to be classified as flammable liquid of category 3, H226: flammable liquid and vapour, according to Regulation (EC) No 1272/2008, as amended for the tenth time in Regulation (EU) No 2017/776.

 

Based on the chemical structure and taking into account the provisions laid down in Regulation (EC) No 1272/2008 the test item is not considered to be classified as flammable solid, flammable in contact with water, pyrophoric or self heating substance.

In accordance with UN-Transport regulations the substance has not to be classified as readily combustible solid, as self-heating substance in Class 4 Division 4.2, as substances which in contact with water emit flammable gases in Class 4 Division 4.3.