@gunrunnerjohn posted:Sorry, I don't know where you get your information, but that's not true!
The most hazardous property of acetone is its extreme flammability. At temperatures greater than acetone's flash point of −20 °C (−4 °F), air mixtures of between 2.5% and 12.8% acetone, by volume, may explode or cause a flash fire.
The flash point of kerosene is between 37 and 65 °C (100 and 150 °F), and its auto-ignition temperature is 220 °C (428 °F).
I don't see anything in that data to suggest kerosene is more likely to ignite! One spark and you have fire with the acetone.
Just rereading some of the track cleaning posts and it reminds me of an event at the U of IL School of Chemistry. The Mass Spec lab had a student with an open flame bunsen burner near a shelf with an open bottle of acetone. The fumes likely flowed out of the container and a fire erupted. The lab was burnt out totally in less than 5 minutes. The student suffered flash burns but was ok. Just something to think about when using acetone.
Another caveat is WD-40. I read of a can of WD-40 that fell off a drill press near a hot water heater with flame at the bottom. The WD-40 sprayed out of the can which landed on it's top and started a major fire from the floor up.
Just some seemingly innocent stuff that can surprise you.
