What will happen to fake gold in the water?
There is no reaction in the water of fake gold. The imitation material of fake gold is generally copper or iron. Salt water is added to a glass of water, and its main component is sodium chloride (NaCl). Copper is chemically stable and will not react with salt water.
The color of copper jewelry is yellow with red, false, dull, soft and light. Copper alloy jewelry (copper-tin alloy) is light in color, hard and light in quality, and it will make the skin black if worn for a long time. The normal state of iron is silvery white solid or grayish black powder, so the surface of iron should be plated with gold powder. After soaking for a while, the gold powder will fall off. And iron will form primary cells in salt water, which will corrode more easily, so it will rust after a while.
Is the blackening of gold fake?
Is false for the following reasons:
1, the color of gold is golden yellow, with metallic luster and is not easy to decompose.
2. As a precious metal, gold has good physical properties. Real gold is not afraid of fire? That is, gold has high chemical stability and is not easy to react with other substances, so there is no need to worry about oxidation and discoloration. Even in the molten state, it will not be oxidized and discolored, and it will still be golden yellow after cooling.
3. Gold has stable chemical properties and strong corrosion resistance, and does not react with oxygen even at high temperature in air (except pure oxygen under certain conditions). The chemical properties of gold are very stable and stronger than silver (silver will be oxidized to silver oxide at 1500 degrees, and gold will not react with oxygen even above 3000 degrees).
4. Although gold itself is not corroded, it has a strong chemical affinity with sulfide, and it is easy to adsorb hydrogen sulfide acid gas in the air, and its surface may be dark, such as orange and brownish red.
Daily maintenance method of gold
1, avoid collision and scratching when wearing, so as to avoid deformation of gold jewelry.
2. It should not be worn when doing housework or heavy work or exercising, so as to avoid deformation and wear of gold jewelry.
3, should avoid contact with chemical reagents, such as mercury, lead and other metals, so as not to damage the surface of gold jewelry.
4, sweating in summer, in order to reduce sweat corrosion, often clean. You can go to the jewelry store to clean it for free, or you can clean it yourself with water and soft cloth.
5. Avoid contact with corrosive substances, such as cosmetics, perfume, vinegar, bleach, correction fluid and chemicals containing elements such as lead and mercury, so as not to corrode the surface of gold jewelry and cause discoloration.
6. Precious metal jewelry should be avoided to be worn or stored together, so as not to damage the jewelry due to mutual friction and affect the beauty of the jewelry. Precious metal jewelry with different components should be worn separately to prevent cross-color between jewelry due to mutual friction.
There will be no reaction when fake gold is released. Generally speaking, the material of fake gold is copper or iron, and copper will not react with the color of salt water. The overall quality of copper is not as good as that of gold. It is a very cheap metal with a soft and dull texture.