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Flash point

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Description of key information

The determination of the flash point of 400160 was conducted according to EU method A.9, OPPTS 830.6315 and UN Manual Test Methods 32.4 in compliance with GLP standards. 
No reproducible flash point could be observed. After consideration of all measurements the minimum temperature for the flash point was used and the flash point will be stated as 178.5 °C at atmospheric pressure.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
178.5 °C

Additional information

A flash point tester following Pensky-Martens was used for the determination. At first, the range of the flash point was determined using a high heating range. Within this range, the determination of the flash point was repeated five times. As no reproducible flash point could be observed, a limit value for the flash point was determined through a triplicate determination with the start temperature 190 °C. 400160 showed an irregular behaviour, showing flash points in the range of 178.5 up to > 210 °C. Therefore, after conducting eight experiments, the minimum temperature of 178.5 °C is considered as flash point at atmospheric pressure.

The inconsistencies in the measurements are attributed to the test item’s properties: the mixture of different liquids are changing during the heating phase of the instrument. Additionally, the test item might react with the copper part of the vessel: a green colour of the liquid was observed when emptying the test vessel after the performances. The flame (when observed) was green, too.