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Physical & Chemical properties

Flammability

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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 organic substance does not contain metals or metalloids and hence, the classification procedure does not need to be applied
the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture
Endpoint:
flammable solids
Data waiving:
other justification
Justification for data waiving:
the study does not need to be conducted because the substance is a liquid
Endpoint:
pyrophoric liquids
Data waiving:
other justification
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:
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

Description of key information

Highly flammable - flammable liquid category 2 
The substance has no pyrophoric properties and does not liberate flammable gases on contact with water.

Key value for chemical safety assessment

Flammability:
flammable

Additional information

See details on classification below!

Justification for classification or non-classification

Based on flash point (1013 mbar) of - 7.5 °C and boiling point (OECD 103) of 77 °C n-butylamine is classified as:

Flammable liquid Cat. 2.

Based on practical experience and the chemical structure of the test item, it does not possess pyrophoric properties and it does not emit flammable gases on contact with water. This is in accordance with the screening criteria for these properties set out in the UN Manual of Tests and Criteria (1).

According to (2), the phenomenon of self-heating applies only to solids. The surface of liquids is not large enough for reaction with air and the available test method is not applicable to liquids. Therefore liquids are not classified as self-heating.  

(1) UN Manual of Tests and Criteria; Sixth revised edition; United Nations 2015; Appendix 6 SCREENING PROCEDURES

(2) Guidance on the Application of the CLP Criteria; ECHA-17-G-21-EN, July 2017