jamesbanda
Chemical
- Sep 21, 2004
- 223
I’ve been made aware of a paper on Flash point predictions for binary mixtures. Which describes systems with mixture flash points that can be 10-15 C lower than the pure components within the mixtures. These are for non-reacting systems, I am aware of systems which react with air and then form a different compound it is explainable that the flash point is lower. But I’d like to understand if this is an industry wide phenomenon or only related to certain chemicals with non-ideal properties. I've been working in a certain industry for some time and never heard of this before..
For example the paper presents octane and methanol as having individual flash points of 9 and 11C, but the mixture flash point is shown going down to 1C. A similar trend is seen heptanes and ethanol
The paper is by MIGVIA DEL C VIDAL VAZQUEZ, “BINARY MIXTURE FLAMMABILITY CHARACTERISTCS FOR HAZARD ASSESSMENT”, Written in 2005 at the Texas university.
I’d like to see if members of the group are aware of this issue / effect and is it widely understood. This is the first time I’ve been aware of this effect.