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Physical & Chemical properties

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Description of key information

relative self-ignition temperature of C8 -18 AAPB:  no self-ignition temperature observed up to the decompostion temperature (208°C)
relative self-ignition temperature of C12 AAPB: no self-ignition temperature observed up to the decomposition temperature (260°C)

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Additional information

In studies conducted according to EU Method A.16 (Relative Self-Ignition Temperature for Solids), the relative self-ignition temperature of C8 -18 AAPB and C12 AAPB was investigated. Up to the decomposition temperatures (>=208°C) no self-ignition temperature was observed. All AAPBs are similar in structure, contain all the same zwitterionic structure. They differ, however, by their carbon chain length distribution and the degree of unsaturation (<=20%) in the fatty acid moiety. The content of minor constituents in all products are comparable and differ to an irrelevant amount. Based on the available data, it can be assumed that chain length distribution and degree of unsaturation of the fatty acid chain have a minor impact on this endpoint.