![]() ![]() The value of the metal in one quarter is now $3.00. If you hoarded every silver coin you could get your hands on in 1964 you would be rather wealthy. Until 1965, dimes, quarters, and half-dollars were made from 90% silver and 10% copper.This does not help with your social life unless your dating demographics include you prefer extinct species: Yet, you can still find the stuff in vitamin stores.Ī 92-year old man with argyria. The silver accumulates in your skin and turns is purple. Since silver can kill bacteria on surfaces and in wounds (maybe, there is little evidence that it works), a bunch of dopes in the 1800s decided that it was a good idea to swallow some (1). You have just seen the chemistry of photography.The exposed part of the silver chloride has turned purple, while the covered part stays white.A bright light is shined on it for a few minutes.A template, which covers part of the solid is placed over it.The white solid is collected by filtration.A white solid, silver chloride, forms instantly.Solutions of silver nitrate and sodium chloride are mixed together.If you add any chloride source, the two react immediately to form silver chloride, which participates as a white solid. Silver nitrate is one of the few water-soluble silver salts. This can be shown with a very simple chemical reaction.Silver salts are highly insoluble in water. (Does anyone know why?) Here is a comparison of silver and sodium salts.Other miscellaneous cool stuff about silver. Some of these are spectacular (Figure 1).įigure 1. It can be found as pure silver or in minerals that contain it. Instead, they are found as minerals where the element exists in a different chemical form. Many metals are too chemically reactive to be found in their elemental form in the earth. OK, even though that last line was untrue, the element silver has enough interesting properties to make a good story. The composition of sterling silver is 92.5% silver and 7.5% copper.ĭid you know that a silverfish is not made of silver? Silver and copper are the most commonly used metals that are added to gold.ĭid you know that the same holds true for pure silver? It is also too soft to be used as jewelry, so it is mixed with copper. ![]() To make it strong enough to be used as jewelry, other metals are added to form alloys (two or more metals dissolved in each other). Did you know that 24k gold (at least 99.7% pure) makes lousy jewelry? It is so soft that it can be bent by hand and you can even bite into it. ![]()
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