I agree, but it even goes farther than that. Some activators may be
nearly neutral, such as amine hydrochlorides. These decompose at close
to soldering temps, to release highly acidic gases, which would not be
seen independently as acids during a KOH titration.
Brian
Rudy Sedlak wrote:
> Siggi:
>
> What a great question, because it cuts to the heart of the issue.
> Unfortunately, it cannot be answered, for many reasons, not the least
> being that there is no absolute definition of any of the fluxes, they
> are defined by the vendors, who each have a slightly different concept
> of what is needed for a particular kind of flux.
>
> But, more, the difference between fluxes is less the amount of acid,
> than the strength of the acid being used. The rosin acids are very
> weak, and on the other end of the scale, some fluxes may even contain
> strong mineral acids like Hydrochloric, and Hydrobromic.
>
> So, the mg KOH/gram is a meaningless number.
>
> Great question.
>
> Rudy Sedlak
> RD Chemical Company---------------------------------------------------
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