Every new twist in technology can bring with it unintended challenges for the fire service, E-85 is a good example. When I make that statement it is not because I am against E-85 as a way to reduce dependence on oil. E-85 is a challenge to the fire service because of the high alcohol in the product. Most firefighting foams that have traditionally been used to fight fuel fires are water based. I am not a chemist by any stretch, but I do know that alcohol loves water and chews it up, thus the problem with your typical firefighting foams on E-85 fires.
The remedy is simple, buy a foam that is alcohol resistant so that the foam bubbles that are put down stay in place and smother the fire and keep it that way until clean-up can happen. I went to a class this past Saturday to get more in-depth and hands-on experience with E-85, the class was enlightening, to say the least. Another related issue with E-85 is that once it is mixed with just a little bit of water, the 10% gasoline in the product rises to the top, burns off with it’s traditional orange flame and thick black smoke and then the alcohol begins to burn. Alcohol fires are very clean burning, during the daytime it can be nearly impossible to see the flames, making it very dangerous for approaching fire and police personnel. Just another danger of E-85. We are developing new response strategies for E-85 and will be implementing them shortly. No doubt more changes will occur in the fuel business and more changes will be coming our way, that is the business we are in.
Below are some pictures of E-85 and an E-85 fire. The first picture shows E-85 mixed with just a little bit of water, notice how the gasoline separates from the E-85/water mix and rises over the top of the cloudy water and E-85 mixture. The next two pictures are of a real life rail car accident. In the first picture not a lot of flame is visible, but when the sun goes down you can see the fire that was present the whole time, but burning so cleanly it wasn’t very visible during daylight hours.
