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Physical & Chemical properties

Flash point

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Description of key information

The flash point was of the test substance was found to be 265°C (mean of three measurements).

Key value for chemical safety assessment

Flash point at 101 325 Pa:
265 °C

Additional information

The flash point of the test substance was determined in accordance with ASTM Testing Guideline D93 (IP 34). The method followed was the Penksy-Martens closed cup method. The flash point was of the test substance was found to be 265°C (mean of three measurements). In addition, a Setaflash high temperature rapid test was conducted to determine the flash point of the structurally similar substance 6-[Methyl(phenylsulphonyl)amino]hexanoic acid, compound with 2,2',2''-nitrilotriethanol (1:1) (N-methyl salt) gave a flash point of 232°C. Read-across between the registered substance and the test substance (N-methyl 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.