On 25.08.12 12:58, Kent A. Reed wrote:
> On 8/25/2012 11:48 AM, dave wrote:
> > Powdered zinc not the granulated mixed with sulfur makes a good rocket
> > fuel. You partially fill sections of the tube and when it goes it gets
> > suspended and you get kind of a dust explosion.
>
> That, of course, explains why I was searching for zinc but not why the
> pharmacy was selling granulated zinc. I guess I should have asked my
> grandmother. She was the one cooking up our home nostrums when I was a
> kid. Did she need a reducing agent? Did she need to generate hydrogen?
> Too late to ask.
Perhaps they made their own "killed spirits" soldering flux:
Zn & HCl, giving a zinc chloride solution. But a cupful of granulated
zinc would last a decade or two, unless you were manufacturing sheet
based goods.
If it was for sacrificial anodes for steam engine boilers, it wouldn't
be granulated, I figure. And I haven't heard of kitchen-scale hot-dip
galvanising.
Erik
--
The whole aim of practical politics is to keep the populace alarmed (and hence
clamorous to be led to safety) by an endless series of hobgoblins.
- H.L. Mencken
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