On 2011-10-04, Tudor Hughes wrote:
Acetaldhyde boils at 20°C. Did you mean isopentane? Nice
little refrigerant with a melting point of -160°C and boiling at 26°C
thus having a liquid range tailor-made for Will.

I was thinking that acetaldehyde is a little more common than ispoentane,
thus probably more likely. But I like your suggestion

Adrian