Valeraldehyde

Flammability

Link to relevant study record(s)

Reference

Reference 1

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 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

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

Reason / purpose for cross-reference:

reference to other study

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

Description of key information

Based on flash point (1013 mbar) of 6.5 °C and boiling point (OECD 103) of 104 °C n-valeraldehyde is classified as:

Flammable liquid Cat. 2.

according to REGULATION (EC) No. 1272/2008 (CLP)

Key value for chemical safety assessment

Flammability:

flammable

Additional information

In accordance with chapter R.7.1.10 of REACH Guidance IR & CSA, ch.R.7a, the flammability of a liquid is described by flash point and boiling point. Based on a flash point of 6.5 °C and a boiling point of 104 °C, the liquid is to be classified as flammable liquid category 2.

Justification for classification or non-classification

Ignition on contact with air: The test item is according to the Guidance on the Application of the CLP Criteria (2) 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. According to these facts further testing in respect to these 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 (1) 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. According to this fact further testing in respect to these properties is not required. 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; Seventh revised edition; United Nations 2019; Appendix 6 SCREENING PROCEDURES (2) Guidance on the Application of the CLP Criteria; ECHA-17-G-21-EN, July 2017