Google suggests that some camping stove fuel is isobutane.
RB
On 29/08/2018 3:57 PM, Craig via Mercedes wrote:
On Wed, 29 Aug 2018 14:01:06 -0500 fmiser via Mercedes
<mercedes@okiebenz.com> wrote:
Gerry wrote:
Isn't there an "R" number for the propane/isobutane mixture?
Jim wrote:
Not for the mix, so far as I know. But propane is R290, and
isobutane is R600A.
Gerry wrote:
On a related topic, Walmart has large cans of propane/butane mix
for $10.00.
Ah. Butane is not the same is isobutane.
https://www.differencebetween.com/difference-between-butane-and-vs-isobutane/
• Isobutane is a structural isomer of butane.
• Butane is unbranched, and isobutane is branched.
• Both have the same molecular formula, but the structural formula is
different.
• Butane has four carbon atoms in the straight chain, whereas isobutane
has only three carbon atoms in the straight chain.
• Physical properties of butane and isobutane are different. For
example, they have different melting points, boiling points, density,
etc.
• Pure isobutane is mainly used as a refrigerant
https://en.wikipedia.org/wiki/Isobutane
Isobutane is obtained by isomerization of butane.
Alkanes
Skeletal isomerization is not normally encountered in the laboratory,
but is the basis of large applications in refineries. In general
straight-chain alkanes, are converted to branched isomers by heating
in the presence of a platinum or acid catalyst. Examples include
isomerisation of n-butane to isobutane and pentane to isopentane.
Fuels with high branching are favored internal combustion engines.[3]
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