ington6 wrote:Heard great things about the Rotax 912 and am in the market for a smaller/cheaper plane. What do you do if you can't get MoGas? I am in Massachusetts and can't even find gas without ethanol at the pump. The wallet would love to have 4 gph on MoGas but it is not looking too good.
Magnet wrote:ington6 wrote:Heard great things about the Rotax 912 and am in the market for a smaller/cheaper plane. What do you do if you can't get MoGas? I am in Massachusetts and can't even find gas without ethanol at the pump. The wallet would love to have 4 gph on MoGas but it is not looking too good.
91 Octane mogas is approved with up to 10% Ethanol and that is the preferred fuel unless of course you can find it without the ethanol. If using 100LL it is recommended to use Decalin which is a lead scavanger and change oil and plugs every 25 hours. With mogas, oil/plug changes are only every 50 hours and some will let their plugs go to 100 hours. Plugs for the Rotax are cheap, I change at 50.
This is a bit surprising to me as ethanol is the rubbing alcohol we use at home and I know it will stay in a plastic bottle for years without causing any damage to the bottle. Also this table shows vinyl esters to be resistant to ethanol of 10% concentration and up to 150F degrees:
http://www.engineeringtoolbox.com/chemi ... d_785.html
I think epoxy based vinyl esters are your best bet for a fuel tank lining. Ashland has products called Hetron and Aropol that may be suitable for your needs.
Now since you mentioned UL1316 I know that Ashland introduced such a product 1 or 2 years ago. I will have to have a trip to a nearby town this afternoon but you can call Ashland or email them and get information about their products:
If I am not mistaken it was a product called Aropol Q7022 but I know Ashland will provide much better info than I can.
Hope this helps better and have a great day!
From Wikipedia, the free encyclopedia
A bottle of isopropyl rubbing alcohol
"Surgical spirit" redirects here. For the sitcom, see Surgical Spirit (TV series).
Rubbing alcohol, USP / B.P. is a liquid prepared and used primarily for topical application. It is prepared from a special denatured alcohol solution and contains 97.5-100% by volume of pure, concentrated ethanol (ethyl alcohol) or isopropyl alcohol (isopropanol). Individual manufacturers can use their own "formulation standards" in which the ethanol content usually ranges from 70-99% v/v. In the UK the equivalent skin preparation is surgical spirit which is always based on an ethyl alcohol-methyl alcohol mixture.
The term "rubbing alcohol" has become a general non-specific term for either isopropyl alcohol (isopropanol) or ethyl alcohol (ethanol) rubbing-alcohol products. The confusion comes from the greater popularity of isopropyl rubbing alcohol, and as a result, individuals requesting "rubbing alcohol" generally expect and get an isopropyl alcohol product.
In the United States, rubbing alcohol, USP and all preparations coming under the classification of Rubbing Alcohols must be manufactured in accordance with the requirements of the US Treasury Department, Bureau of Alcohol, Tobacco, and Firearms, using Formula 23-H (8 parts by volume of acetone, 1.5 parts by volume of methyl isobutyl ketone, and 100 parts by volume of ethyl alcohol). It contains 97.5-100% by volume of absolute ethyl alcohol, the rest consists of water and the denaturants, with or without color additives, and perfume oils. Rubbing Alcohol contains in each 100 mL not less than 355 mg of sucrose octaacetate or not less than 1.40 mg of denatonium benzoate. The preparation may be colored with one or more color additives. A suitable stabilizer may also be added.
PS How do farmers still posture as conservatives when they spend so much time at the government teat?? Just a rehetorical question/puzzle......
Ethanol may also be produced industrially from ethene (ethylene). Addition of water to the double bond converts ethene to ethanol:
C2H4 + H2O → CH3CH2OH
This is done in the presence of an acid which catalyzes the reaction, but is not consumed. The ethene is produced from petroleum by steam cracking.
About 5% of the ethanol produced in the world in 2003 was actually a petroleum product. It is made by the catalytic hydration of ethylene with sulfuric acid as the catalyst. It can also be obtained via ethylene or acetylene, from calcium carbide, coal, oil gas, and other sources. Two million tons of petroleum-derived ethanol are produced annually. The principal suppliers are plants in the United States, Europe, and South Africa. Petroleum derived ethanol (synthetic ethanol) is chemically identical to bio-ethanol and can be differentiated only by radiocarbon dating.
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