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Antifreeze is flammable!

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Old Sep 18, 2005 | 02:06 AM
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Antifreeze is flammable!

Ok, I had a large quantity of antifreeze sitting in a bucket, and I had a good barrel fire going courtesy of my old entertainment center. I put a grate over the barrel, and put the coolant in a steel pan on the grate. I figured it would boil off, and leave some whitish crud in the pan just like it does around a leak. Turns out, as it boils, it turns into this brown tarry stuff, that is VERY flammable. The smoke from this stuff stinks, and has to be toxic, it gave me an incredible headache immedietely. Just for fun, I dumped a cup of a/f on the fire itself, it lit and burned in the air on the way down, in a pretty cool pattern, kinda like fireworks.
So, if you have a bunch of coolant to get rid of, don't try to boil it off! Also, if you have a fire, don't throw this stuff on it, you might as well throw gas on it.
 
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Old Sep 18, 2005 | 02:52 AM
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The flashpoint of ethylene glycol is 232F and only requires 3.2% vapor in air to be ignitable.
 
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Old Sep 18, 2005 | 03:35 AM
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That can't be good for the eviroment boiling off antifreeze.
 
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Old Sep 21, 2005 | 01:56 AM
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Wow! Who ever would have thought. Good info Jared. You either saved some people from disaster or gave them some bad ideas for a back yard experiment.
 
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Old Sep 21, 2005 | 04:36 AM
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Ethylene Glycol is a hydrocarbon.

Check with your local waste disposal facility but my local facility (wastewater district) tells me to flush old coolant down the toilet. The sewer "bugs" at the treatment plant love the stuff.
 
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Old Sep 21, 2005 | 06:49 AM
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My local landfill has a recycling tank for coolant just like the one for oil. No charge, No limit, just bring it in.
 
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Old Sep 21, 2005 | 06:54 AM
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Originally Posted by Torque1st
Ethylene Glycol is a hydrocarbon.

Check with your local waste disposal facility but my local facility (wastewater district) tells me to flush old coolant down the toilet. The sewer "bugs" at the treatment plant love the stuff.
Thats what were supposed to do here too coincidentally....

Thats is friggin hilarious jared, I love it
 
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Old Sep 21, 2005 | 06:32 PM
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Well, my other options included dump it in the septic tank, in the woods, in the stream flowing by, or pay $5 per gallon to dump it. Kitsap county charges, and it has to be clean. Same with the oil, I think it's $1 per gallon, they dump it, if it smells like anything other than oil they bring it back. I figured it would just boil the water out, leave some white crud in the pan like you get around a leak on a car, and I could just throw that in the garbage.
 
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Old Sep 21, 2005 | 08:10 PM
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Hmmm, I wonder if it would hurt a septic tank?
 
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Old Sep 21, 2005 | 08:18 PM
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just drink it, it would make good juice. HA
( DO NOT DRINK! ANTI-FREEZE)"
 
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Old Sep 21, 2005 | 08:41 PM
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thats nuts. I had no idea that stuff was flammable
 
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Old Sep 22, 2005 | 11:46 AM
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Septic tanks do not have oxygen in the slurry so they will have a different bacteria in than the water treatment plants that actually stir air and hence oxygen into their slurry. Those folks that pump out septic tanks actually have a special treatment plant for dumping their trucks. The anti-freeze may be harmful to the breakdown in your tank and then clog your drain field. I would not put it in my tank.
 
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Old Sep 22, 2005 | 01:45 PM
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Originally Posted by Torque1st
Ethylene Glycol is a hydrocarbon.

Check with your local waste disposal facility but my local facility (wastewater district) tells me to flush old coolant down the toilet. The sewer "bugs" at the treatment plant love the stuff.
Always learning something new here at FTE . . . who's of thought you should put that stuff down the toilet? Guys working at the waste water facility will see it stream in and wonder what the hell you hate for dinner.
 
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Old Sep 22, 2005 | 06:16 PM
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I didn't know about it until I took some in to the center for recycling. They told me what they did with it and what I should do with it in the future. It helps not having to store and transport the stuff. In the long run it probably avoids spills.

I keep a lot of my old AF in sealed containers and let the dirt settle out. I bottle the clean fluid and use it for additive mix like the 50/50 mix in the stores. Saves some bucks. I just use old jugs to store it and label them.
 

Last edited by Torque1st; Sep 22, 2005 at 06:20 PM.
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