Provide a detailed introduction to the maintenance methods for electroplated and unplated silver jewelry

The easy oxidation of silver is its flaw, and it is also a headache for consumers and producers. The common silver surface treatment methods in the domestic market include further oxidation, electroplating, and untreated treatment.
Further oxidation and untreated are both ways to fully utilize the blackening characteristics of silver oxidation. By using oxidants to deepen the oxidation of the silver surface, or by utilizing the natural oxidation of the silver surface, a richer color and mechanism effect can be produced in silver jewelry, transforming flaws into jade. This is a method of leveraging strength.
The true method to prevent surface oxidation of pure silver jewelry is electroplating, which commonly includes silver plating, rhodium plating, palladium plating, and other methods. Firstly, it is necessary to distinguish whether there is electroplating (silver jewelry is generally divided into electroplated and non electroplated):
Electroplated pure silver jewelry, with an inner layer of pure silver and a surface treated with electrical current; Electroplating is generally divided into electroplated gold and platinum; The method of identifying electroplating is to give it a shiny surface that is more pure silver, like a mirror, with good reflective effect and less prone to oxidation (depending on the thickness of the electroplating). Unplated pure silver jewelry is prone to losing its luster due to sulfurization, as sulfur dioxide and silver in the air react chemically to form a layer of silver sulfide that gradually turns black on the silver jewelry, similar to how a sliced apple will turn black.
The simple method for handling silver jewelry with electroplating is as follows:
1. First, go to a nearby traditional Chinese medicine clinic or pharmacy to purchase a packet of alum;
2. Boil the silver jewelry you are wearing in water at a ratio of 10 parts water to 1 part alum (the water must be boiling);
3. Take out silver jewelry and put it in cold water. Use a soft brush (such as a toothbrush) dipped in toothpaste, laundry detergent, or salad gel to clean it;
4. Blow dry with a hair dryer, then wipe with suede to make it look as shiny as new.