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Physical & Chemical properties

Flammability

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Endpoint:
flammable gases
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a liquid
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
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
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
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
Endpoint:
substances / mixtures which in contact with water emit flammable gases
Data waiving:
other justification
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
Endpoint:
self-heating substances / mixtures
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted for organic peroxides

Description of key information

The substance does not have to be considered as flammable gas, flammable solid, flammable in contact with water, flammable aerosol, pyrophoric solid, pyrophoric liquid or self-heating substance. The substance was classified as flammable liquid Cat. 3 (H226) and Organic peroxide Type C.

Key value for chemical safety assessment

Flammability:
flammable

Additional information

Flammable liquid:

The flash point of the test item was determined to be 39 °C. Therefore the test item was classified as flammable liquid Cat. 3, H226.

Flammable solid:

The test item is a liquid at ambient conditions. This hazard class is only applicable for solids. Thus, the substance was not considered for classification as flammable solid.

Flammable gases:

The test item is a liquid at ambient conditions. This hazard class is only applicable for solids. Thus, the substance was not considered for classification as flammable gases.

Flammability in contact with water:

Based on the molecular structure as well as experience in handling and use, the substance shows no water reactive properties.

 

Pyrophoric properties:

Based on the molecular structure as well as experience in handling and use the substance shows no pyrophoric properties.

 

Self-heating substance

According to Guidance on information requirements and chemical safety assessment, R7a, Endpoint specific guidance, R.7.1.10.7, the UN Test method N.4, for self-heating substances and mixtures does not need to be conducted as the substance is classified as organic peroxide.

 

Self-reactive substance

According to Guidance on information requirements and chemical safety assessment, R7a, Endpoint specific guidance, R.7.1.10.4, the UN test series A - H for self-reactive substances and mixtures, do not need to be conducted as the substances is classified as organic peroxide.

In conclusion, the substance does not have to be considered as flammable gas, flammable solid, flammable in contact with water, flammable aerosol, pyrophoric solid, pyrophoric liquid or self-heating substance. The substance was classified as flammable liquid Cat. 3 (H226) and Organic peroxide Type C.

Justification for classification or non-classification

Based on the study results, the molecular structure and experience in handling and use, the substance is not classified and labelled as flammable solid, flammable gases, flammable in contact with water, pyrophoric, self-reactive substance and self-heating substance according to Regulation (EC) No 1272/2008 (CLP). Based on the results of the UN-MTC tests, the decision logic and in accordance with Regulation (EU) No 1272/2008, tert-butyl peracetate is classified as Organic Peroxide Type C with H242 (Heating may cause a fire) and classified as flammable liquid Cat. 3 H226 (Flammable liquid and vapour).