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The Water Cooler
General Discussion
Where the heck can I find some Zinc to do some plating?
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<blockquote data-quote="Dave70968" data-source="post: 3005096" data-attributes="member: 13624"><p><mumble grumble...making me think this late at night...></p><p></p><p>I remember from high school chemistry* making penny shells. We'd file nicks in the copper, the drop the pennies into HCl to dissolve out the zinc (the copper was left untouched). The point of the exercise was to determine the relative fractions of copper and zinc (a simple matter of weighing the before and after products), but one notes that HCl (hydrochloric acid; read: "muriatic acid," which refers to a specific strength of the former, and is available at your local Lowe's or Home Despot) dissolves zinc while leaving copper unharmed.</p><p></p><p>It seems reasonsable that one could precipitate the zinc out of solution by neutralizing the acid. It's way too late at night (early in the morning) to work it out, but I wonder if sodium bicarbonate (baking soda) wouldn't do the trick. Acid + base -> water + salt; sodium + cloride -> table salt, the carbonate leading to CO2...</p><p></p><p>...just thinking. Anybody with real chemistry knowledge want to weigh in?</p></blockquote><p></p>
[QUOTE="Dave70968, post: 3005096, member: 13624"] <mumble grumble...making me think this late at night...> I remember from high school chemistry* making penny shells. We'd file nicks in the copper, the drop the pennies into HCl to dissolve out the zinc (the copper was left untouched). The point of the exercise was to determine the relative fractions of copper and zinc (a simple matter of weighing the before and after products), but one notes that HCl (hydrochloric acid; read: "muriatic acid," which refers to a specific strength of the former, and is available at your local Lowe's or Home Despot) dissolves zinc while leaving copper unharmed. It seems reasonsable that one could precipitate the zinc out of solution by neutralizing the acid. It's way too late at night (early in the morning) to work it out, but I wonder if sodium bicarbonate (baking soda) wouldn't do the trick. Acid + base -> water + salt; sodium + cloride -> table salt, the carbonate leading to CO2... ...just thinking. Anybody with real chemistry knowledge want to weigh in? [/QUOTE]
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Where the heck can I find some Zinc to do some plating?
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