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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › Fuel testing ?
03-08-2012 02:07 AM  6 years agoPost 1
CX1

rrKey Veteran

Canada

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Does anybody how to test nitro fuel for content %?

and would it be possible to test for water as well ?

I have some older fuel, and was wondering if it absorbed any water while in storage..?

" Team Protoast "

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03-08-2012 02:27 AM  6 years agoPost 2
Ravenhyper50

rrKey Veteran

Canada's Capital

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Put it in the freezer. What ever freezes will be water, then pour into another jug and your good to go.

Now how much nitro you lost..not much if your cap was on.

Cheers,
Raven

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03-08-2012 04:27 PM  6 years agoPost 3
StephenIII

rrNovice

Boonton, NJ USA

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Raven,

That is fantastic. HS physical science 101. I have had water actully end up as scum on the bottom of my jugs.

SJW

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03-08-2012 06:24 PM  6 years agoPost 4
CX1

rrKey Veteran

Canada

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Was wondering if there is a " test strip" to measure the nitro content
and oil

anybody?

" Team Protoast "

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03-08-2012 09:15 PM  6 years agoPost 5
Four Stroker

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Atlanta

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They used to make alcohol based anti-freeze. The water didn't freeze.

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03-08-2012 09:22 PM  6 years agoPost 6
Justin Stuart (RIP)

rrMaster

Plano, Texas

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If you want to remove all of the water from your fuel, you'd have to do several freeze-pour cycles. This is a process called "fractional freezing". It works similar to fractional distillation, but would be more appropriate with very heat sensitive compounds.

You can make hard liquor the same way. Take a large 55 gallon vat of wine with ~5% alcohol and freeze it. Keep what doesn't freeze. Each time you repeat the process, the liquid will freeze at a lower and lower temperature and the concentration of alcohol will gradually increase. By the time you get down to about 1 liter of fluid, it should be fairly pure alcohol. But you'll be throwing a lot of alcohol/water ice away.

You definitely can't freeze out all of the water on the first try.

You really need to get hold of some "molecular sieves". Cheaper however would be silica gel. You should be able to find it in the flower drying section of an arts/crafts store. You might even find a brand of kitty litter with it as the main ingredient. Bake the silica gel in the oven for an hour and then pour it into your fuel. The silica should preferentially bind the water. Then filter it out. This should make your fuel very pure.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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03-08-2012 11:32 PM  6 years agoPost 7
airdodger

rrElite Veteran

Johnston USA

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It won't be a seceret if it has excess water' it won't run correct. You would probably need a spectometer to check the nitro.

Chris

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03-09-2012 01:00 AM  6 years agoPost 8
GREYEAGLE

rrElite Veteran

Flat Land's

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Huh ?
Sure Glad I do not strive to become a RR Master-
Of course moth ball's and coffee grounds is a sure bet.

I thought Foo hasn't been around and Manny Retired ??

No more rides on Hog Wart's Express

greyeagle

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