What are the ways to distinguish between gold jewelry and brass jewelry?

What are the ways to distinguish between gold jewelry and brass jewelry? Gold and brass are two very commonly used materials for making jewelry. Because the price of brass is relatively cheap, there are many brass jewelry on the market as jewelry for gold jewelry. Are there any good ways to distinguish them? Let the jewelry factory explain it for everyone. 1. Use physical principles to distinguish the hardness of gold and brass jewelry: pure gold is soft, low in hardness, shallow marks can be drawn with nails, teeth can leave teeth marks, high-color gold jewelry is softer than low-color, and the more copper it contains The more the harder, the bending method can also test the hardness. Pure gold is soft and easy to bend. The lower the purity, the harder it is to bend. Density measurement: Gold has a high density. Second, use the chemical reaction principle to distinguish 1. Put it in the dilute acid, and the bubble will show that it is brass jewelry, because the fakes are mostly mixed with zinc and will react with the acid. 2. Burning on the fire, so-called real gold is not afraid of fire, because fake gold contains copper, it will be oxidized into black copper oxide under fire. 3. After heating, put it in the acetaldehyde solution, the thing that turns red is brass (that is, fake gold) 3. Add CuSO4 solution, and the red metal is precipitated out of brass jewelry. The above analysis of gold brass from two aspects of physics and chemistry The method of jewelry is also a very common identification method in our daily life. If you want to order a large amount of brass jewelry, please contact us! Phone: Mr. Wang