Gasohol

In rec.aviation.owning Morgans wrote:

"Cubdriver" wrote

Well, the alky presumably was shipped in full tanks / barrels /
whatever, so we can hope it's undiluted.

But, it is _very_ difficult (it takes some expensive chemistry tricks) to
get all of the water distilled out of alcohol, in other words, stronger than
around 98% alcohol. Is that all the alky producers go for, or do they use
the expensive tricks to get the last two percentage points of water out of
the alky?

It would be pointless as 100% alcohol would immediately start absorbing
water from the air.

In another post I said alcohol would absorb about 2-3% by volume. A web
search gives numbers in the range of 2-4%.

--
Jim Pennino

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wrote

It would be pointless as 100% alcohol would immediately start absorbing
water from the air.

In another post I said alcohol would absorb about 2-3% by volume. A web
search gives numbers in the range of 2-4%.

I'm not disagreeing with you. I do wonder what the water content of the
pure alky is, the moment it comes out of production, though.
--
Jim in NC

In rec.aviation.owning Morgans wrote:

wrote

It would be pointless as 100% alcohol would immediately start absorbing
water from the air.

In another post I said alcohol would absorb about 2-3% by volume. A web
search gives numbers in the range of 2-4%.

I'm not disagreeing with you. I do wonder what the water content of the
pure alky is, the moment it comes out of production, though.

Probably around 5-8%.

Back in my college days I did "fermentation and chemistry experiments"
and with half-way decent temperature control that's what you get.


--
Jim Pennino

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