It is rumored that a small amount of lead and mercury in cosmetics will react chemically with gold, which will corrode gold. The white spots on the surface of gold jewelry are an intuitive manifestation. So will cosmetics corrode gold jewelry? is this real?
In fact, the white spots on the surface of gold, and even black spots, green spots, etc., are normal. When a chemical element adheres to the surface of gold, a chemical oxidation reaction occurs, and elements that are more likely to adhere are mercury, lead, and the like. "Accurately, it should be an oxidized film. They are only attached to the surface of gold. They do not corrode or invade the gold itself. It is also very convenient to remove."
It can be seen through a set of experiments: ignite the high temperature musket (the temperature is about 2000 degrees), and the gold bracelet with the "white spot" moves smoothly and laterally closer, all enters and removes the flame, less than 3 seconds before and after, the original white spot is completely Disappeared, the gold bracelet did not have any signs of burning or destruction. Real gold is not afraid of fire, but 'stubborn stains' will quickly vaporize at high temperatures.
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