fine jewelry wholesale gold omega necklace made in china What is the reason for becoming black after the golden fire is burned

wholesale jewelry manufacturer usa Gold is a very valuable metal in our lives. Many rich people buy some gold jewelry to decorate themselves, such as gold necklace, gold earrings, gold rings, gold bracelets, and so on. However, when some friends bought the gold, they found that the gold they bought turned black after the fire burned. I don't know if the gold in this case is fake. So what is the reason why the golden fire becomes black after burning? Then let me introduce the reason why the golden fire becomes black after burning.

The reasons 1: After the golden fire is burned, it can not be said to be gold leave. It can only be said that the gold content is different. purity. All golden fires that do not reach enough gold will turn black, 18K golden fire will turn black, the purity of the gold is 75%. It cannot be said that it is fake.

This:
The some cosmetics or hair dye contains trace lead. At this time, the gasoline spray wheels used for jewelry processing can be heated, because the melting point of mercury and lead is very low, and it will volatilize during the heating treatment of the spray wheel, so that the gold jewelry will restore the original face. Of course, it is best not to wear gold jewelry when applying cosmetics or dyeing to avoid post -troubles.

It looked at my method, now do you know the reason why the golden fire turns black after burning? If you have learned it, please share this method quickly, so that more people know the reason why the golden fire turns black after burning. While performing the above steps, we need to pay attention to avoid wearing gold jewelry when applying cosmetics or hair dyeing. The above is the reason why the golden fire turns black after burning.