On Wed, 15 Oct 2003 00:22:39 GMT, in message

"Don White" wrote:

I thought 'Camping Gas' was naphtha...

He probably means "Camping Gaz" which is a brand name for LPG camping
appliances (stoves, lanterns, etc.) and their fuel. It is quite common
in Europe and the canisters will contain a mix of propane and butane
in proportions that depend on the latitude. (This tidbit of knowledge
comes from reading the content labels when I should have been having
fun instead ;-) )

Butane (C4H10 MW=58) is heavier than Propane (C3H8 MW=44) is heavier
than air (mix N2 and O2 MW=29).

Ryk

hanz wrote in message
...
Except propane is heavier than air and butane (e.g. camping gas) is
lighter than air..


Hanz