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Physical & Chemical properties

Auto flammability

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Description of key information

Based on read across the relative self-ignition temperature of (benzoato-O,O')hydroxy(octadecanoato-O,O')aluminium is estimated to be 383°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
383 °C

Additional information

As no data was available for the self-ignition temperature of (benzoato-O,O')hydroxy(octadecanoato-O,O')aluminium, the endpoint was read across from the substance aluminum, benzoate C16-18-fatty acids complexes. The relative self-ignition temperature of the read-across substance was tested in a proprietary, GLP-compliant study following EC 440/2008 A16 method (Harlan 2013).

Aluminum, benzoate C16-18-fatty acids complexes (CAS No. 94166-87-7, EC No. 303-385-6) is considered suitable for read across to (benzoato-O,O')hydroxy(octadecanoato-O,O')aluminium as it is structurally similar being an approximate 2:1 mixture of (benzoato-O,O')hydroxy(octadecanoato-O,O')aluminium and (benzoato-O,O')hydroxy(hexadecanoato-O,O')aluminium. The only significant difference therefore is the presence of about 30% of the aluminium complex containing the saturated C16-fatty acid, hexadecanoate, in place of the saturated C18-fatty acid, octadecanoate. This small difference in composition is expected to have no influence on self-ignition temperature.