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posted to rec.boats
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First recorded activity by BoatBanter: Oct 2006
Posts: 74
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Warning: Experience with boating product menitioned
wrote:
:On May 21, 2:20 pm, basskisser wrote:
: Seeing how the definition of "soap" is simply a surfactant,
:But that's not a really GOOD definition, just a colloquial one, for
:either term. For instance, the Charlie's soap site explains that it
:got that name colloquially and retains it from familiarity. Hard to
:beat a 4 letter word.
:Also be aware that in Index Medicus (NLM) and in some other medical
:contexts, the contraction "surfactant" applies specifically to
:PULMONARY surfactant, while "surface active agent" retains the more
:general meaning.
:There are also some soaps that aren't very soapy and, practically,
:aren't surfactants at all. For instance, a dietary supplement might
:supply potassium as potassium acetate, which technically is a soap but
:has no useful amount of surface activity.
For instance, lubricating greases are mostly soap based, mostly
calcium or lithium. It's a big advantage that they're not
water-soluble.
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