What causes the whitening of gold

What's the deal with platinum?

It may turn white, which may be caused by friction with white hard metal, or it may be caused by inadvertently contaminating the surface with mercury metal substances or daily necessities containing mercury metal. If the surface is white, it is recommended to send the surface to the gold store for a flame gun treatment to restore the surface of the project. The reason for the white color may also be the accidental contamination of the surface with mercury metal substances, or the accidental contamination of daily necessities containing mercury metal, resulting in white spots on the surface.

If the surface turns white, it is recommended to send the gold shop for processing, and let the gold shop master spray gold with a musket. The melting point of mercury is very low, and it will volatilize immediately when heated, so that the ** will return to its original appearance.

**The main reason for whitening is the encounter with mercury, which occurs as a kind of amalgamationChemical reactions, and produce a new chemical substance - gold amalgamation, and the color of gold amalgam is just yellow-white, adsorbed on the surface of **jewelry, resulting in the phenomenon of "**white".

If there are ** and white gold rings on adjacent fingers, then the fingers are often active, which will cause ** and white gold to rub against each other, then the surface of the **ring may rub against white gold and look like **white.

The worst reason for whitening is to buy a fake, and encounter unscrupulous merchants who use metal such as ** to pass off, and plate a layer on the surface of the jewelry**, so that consumers are deceived, but after wearing this jewelry for a period of time, the surface is gilded and falls off due to friction and other reasons, thus revealing the white metal inside.

** Solutions for whitening

If it turns white due to contact with mercury or **, remember not to use a knife or other hard objects to remove it directly, and the correct way should be to use an alcohol lamp.

or the welding torch used to process jewelry turns white or has white spots.

The parts are fired, and then wiped clean with a fine flannel cloth after cooling can restore the original golden luster.

If you don't have an alcohol lamp at home or you don't have enough experience, it's best to send your jewelry to a jewelry store for processing, and avoid using a lighter to dispose of it yourself, otherwise the jewelry will easily turn black if it is not completely burned.

When wearing ** jewelry in summer, you must remember to take it off and clean it frequently, and do not often bring ** jewelry into places with serious chemical pollution. **Jewelry is not very squeamish, but if not carefully maintained, it will also lose its initial luster and charm, in general, the following points should be paid special attention to:

1. Dish soap.

can change the color of gold, so you should remove your gold jewelry before doing cleaning work.

2. Avoid direct contact with perfume and hairspray.

and other highly volatile substances, otherwise it is easy to cause the fading of gold jewelry.

3. Take off the gold jewelry when swimming, so as not to produce chemical changes on the surface after touching the sea water or pool water.

4. Wrap it in flannel cloth and then put it in the jewelry box to avoid friction and damage.

5. **Relatively soft and easy to deform, so do not pull necklaces and other accessories to avoid deformation.

6. Pure gold jewelry is in the presence of mercury.

When there will be a chemical reaction, white spots will appear, and the original color can be restored as long as it is grilled under the alcohol lamp for a while when cleaning.