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HelicopterMain Discussion › Any chemist out there?
04-26-2002 01:02 PM  15 years agoPost 1
cpheli

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Beatiful Alberta.

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Here's a question for the hobby chemist:
Is white gas (naphta) mineral based or vegetal based?

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04-26-2002 01:23 PM  15 years agoPost 2
Doug

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Port Saint Luice Florida....

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04-26-2002 11:39 PM  15 years agoPost 3
Brian Bennett

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Dugway/Tooele UT, USA

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Naptha, petroleum naptha, ligroin, and pet ether are all the terms for a very crude/inconsistent mixture of both aliphatic and a few non-aliphatic hydrocarbons produced from the crude oil refinement process. The composition is dependent on many things including the refinement process and the origin of the crude oil. Often a lot of other junk of varying composition is also found within, but in smaller amounts. Usually the mixtures are defined by the boiling point range from which they were fractionated during the purification process. 30 - 60 C is a very common range. In my research lab we typically shy away from using naptha (pet ether) due to the variabilty of composition even if prescribed within a published synthetic experimental. Instead another non-polar hydrocarbons with the desired boiling point such as heptane, hexane, pentane( which can be purchased in a pure or more pure form) are employed. This cuts out variable(s) from the experiment. Used as a solvent, the only real difference is purity and cost. Naptha is about as inexpensive as you can get when it comes to organic solvents.
--Gi

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04-27-2002 04:54 AM  15 years agoPost 4
Inspector Fuzz

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NLA

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giheli...

Howdy!!!
Thank you for the informative and excellent post.. Next time, though, don't dumb it down so much. Give it to us in more scientific terms. We are all educated adults here and we would apprecitate a more complex thorough analysis..

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04-27-2002 08:42 PM  15 years agoPost 5
Brian Bennett

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Dugway/Tooele UT, USA

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Ahh yes always the the biggest challenge!

Gi

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