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Physical & Chemical properties

Flash point

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Description of key information

The flash point was of the registered substance was found to be 232°C (mean of three measurements).

Key value for chemical safety assessment

Flash point at 101 325 Pa:
232 °C

Additional information

The flash point of the registered substance was determined in accordance with ASTM Testing Guideline D93 (IP 34). The method used was the Setaflash high temperature rapid test. The flash point of the test substance was found to be 232°C (mean of three measurements). In addition, a Penksy-Martens closed cup test was conducted to determine the flash point of the structurally similar substance 6-[(p-Tosyl)amino]hexanoic acid, compound with 2,2',2''-nitrilotriethanol (1:1) (Tosyl salt), which gave a flash point of 256°C. Read-across between the registered substance and the test substance (Tosyl salt) is considered justified owing to the structural similarity of the two substances. Both are salts of a carboxylic acid and triethanolamine. The acid components are structural isomers and differ only in the position of a single methyl group in the N-methyl salt. This is not expected to change the behavior or properties of the substances, and both substances have shown similarity in the results of other physical endpoints such as water solubility.