In article , vikasm.4ec9e26
@gardenbanter.co.uk says...

'benzalkonium chloride' (http://www.useful-chemicals.com/?p=55) is
readily soluble

in ethanol and acetone. Although dissolution in water is slow, aqueous
solutions are easier to

handle and are preferred. Solutions should be neutral to slightly
alkaline, with colour ranging

from colourless to a pale yellow. Solutions foam profusely when shaken,
have a bitter taste and a

faint almond-like odour which is only detectable in concentrated
solutions.

SPAM