3 thoughts on “How to distinguish copper and gold bracelets”
Myra
The quality of brass and gold is very different. The brass is very light. There is only one way that the gold is important. There is only one way that there is no professional instrument and does not want to destroy. The windproof lighter is burned to the metal. High temperature will oxidize, gold will not], or yellow can definitely be gold. This method is simple and effective. saying that other colors should be bad
Pay content for time limit to check for freenAnswer the identification method 1. Put the bracelet into the thin acid. If there is a bubble emerge, it is determined that the bracelet is a fake, because the fake goods are mostly zinc, which will cause bubbles with the acid reaction. ; 2. Put the bracelet on the fire. The real gold is not afraid of the fire. Because the fake gold contains copper, it will be oxidized into black copper oxide under the fire. The real gold is not afraid of the fire. ; 3. Put the bracelet and put it in the acetaldehyde solution. It is brass that becomes red, that is, fake gold, and the real gold will not produce any chemical changes; 4. The bracelet is added with copper nitrate solution. Bonhole, gold will not change.nThe first method is to see hardness. The hardness of copper is higher than gold, and gold is relatively soft, and the teeth can be bite out of the teeth. 2. The second method is to observe the color. The color of the gold is very beautiful, and the copper will be much more dim. Although they are all yellow metals. 3, the third method is to knock on the sound. Copper has sound and sound and rhyme, and the golden voice is dull, there will be no echo, no sound rhyme. 4, the fourth method is to watch the bouncing force. Gold or copper throw it to the ground. The copper will have bullets to bounce, and the gold will have no bouncing power. 5. The fifth method is to see the degree of oxidation. Gold is a rare metal. The degree of antioxidant is particularly high. It is easy to corrode easily. For copper placing some vinegar on it, rust and green will appear on the second day. 6. The 6th method depends on their proportion. The proportion of gold is relatively high, and the copper will be much lighter. The feeling of holding the gold in the hand is particularly heavy. There is no such phenomenon in copper.
The quality of brass and gold is very different. The brass is very light. There is only one way that the gold is important. There is only one way that there is no professional instrument and does not want to destroy. The windproof lighter is burned to the metal. High temperature will oxidize, gold will not], or yellow can definitely be gold. This method is simple and effective.
saying that other colors should be bad
Pay content for time limit to check for freenAnswer the identification method 1. Put the bracelet into the thin acid. If there is a bubble emerge, it is determined that the bracelet is a fake, because the fake goods are mostly zinc, which will cause bubbles with the acid reaction. ; 2. Put the bracelet on the fire. The real gold is not afraid of the fire. Because the fake gold contains copper, it will be oxidized into black copper oxide under the fire. The real gold is not afraid of the fire. ; 3. Put the bracelet and put it in the acetaldehyde solution. It is brass that becomes red, that is, fake gold, and the real gold will not produce any chemical changes; 4. The bracelet is added with copper nitrate solution. Bonhole, gold will not change.nThe first method is to see hardness. The hardness of copper is higher than gold, and gold is relatively soft, and the teeth can be bite out of the teeth. 2. The second method is to observe the color. The color of the gold is very beautiful, and the copper will be much more dim. Although they are all yellow metals. 3, the third method is to knock on the sound. Copper has sound and sound and rhyme, and the golden voice is dull, there will be no echo, no sound rhyme. 4, the fourth method is to watch the bouncing force. Gold or copper throw it to the ground. The copper will have bullets to bounce, and the gold will have no bouncing power. 5. The fifth method is to see the degree of oxidation. Gold is a rare metal. The degree of antioxidant is particularly high. It is easy to corrode easily. For copper placing some vinegar on it, rust and green will appear on the second day. 6. The 6th method depends on their proportion. The proportion of gold is relatively high, and the copper will be much lighter. The feeling of holding the gold in the hand is particularly heavy. There is no such phenomenon in copper.
Density