Washing it in a regular store will be as smooth as new. Why do gold turn white?
In gold is one of the most stable metals in nature. It does not respond to various oxide gas in the air at room temperature. Water (mixture of hydrochloric acid and nitric acid) can corrode it.
The brine tofu, one object is reduced, liquid metal mercury (mercury) is easy to combine with gold to generate a compound called gold mercury, as white The contacted mercury will immediately turn white, because the mercury is volatile, and even if it is far away, it can cause the jewelry to discolor. Most of these situations occur in hospitals or clinics, and most of them are caused by a thermometer that causes mercury leaks.
Gold should not be white. If it is white, it may be false and gold plated.
Washing it in a regular store will be as smooth as new.
Why do gold turn white?
In gold is one of the most stable metals in nature. It does not respond to various oxide gas in the air at room temperature. Water (mixture of hydrochloric acid and nitric acid) can corrode it.
The brine tofu, one object is reduced, liquid metal mercury (mercury) is easy to combine with gold to generate a compound called gold mercury, as white The contacted mercury will immediately turn white, because the mercury is volatile, and even if it is far away, it can cause the jewelry to discolor. Most of these situations occur in hospitals or clinics, and most of them are caused by a thermometer that causes mercury leaks.