Registration Dossier
Registration Dossier
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EC number: 700-661-1 | CAS number: -
Flammability
Administrative data
Link to relevant study record(s)
Description of key information
The flash point of PSOA was determined to be 62.5°C. No flammability in contact with water and no pyrophoric properties are expected for PSOA.
Key value for chemical safety assessment
- Flammability:
- non flammable
Additional information
Flammability (liquids):
The flash point of PSOA (Peroxy sulfonated oleic acids) was measured in a closed cup according to EU Method A.9, OPPTS 830.6315 and UN Manual Test Methods 32.4. Two independent determinations were performed. Flash points of 62.5 °C and 66.0 °C were measured; decomposition and strong foaming were observed after measurement. The lower flash point of 62.5 °C is used for safety reasons.
Flammability in contact with water:
The chemical structure of PSOA does not contain chemical groups, capable of causing the development of a dangerous amount of (flammable) gas (e.g. hydrogen), when in contact with damp air or water. In addition, from experience in handling and use no flammability in contact in water is expected, as the substance is marketed in aqueous solutions. Therefore, the test substance is not considered highly flammable in contact with water.
Pyrophoric properties:
From the structural formula of PSOA it can be concluded that the test substance is not pyrophoric. PSOA does not contain any chemical group that might lead to spontaneous ignition shortly after coming into contact with air at room temperature. In addition, from experience in handling and use no ignition in contact with air is expected.
Justification for classification or non-classification
Based on the flash point of 62.5°C no classification and labelling with respect to flammability according to EU Directive 67/548/EEC and EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No 1272/2008 is warranted.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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