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Anonymous users2024-02-15Here are a few ways to distinguish the authenticity of copper:
1.Material: Real copper is composed of two metal alloys, copper and tin, if the surface of copper products often appears oxidation, rust and other phenomena, then it is likely to be a fake.
2.Weight: Copper has a higher density and heavier weight. If it feels light in the hand, then it may be a fake.
3.Patterns and patterns: Copper products usually have unique patterns and patterns, if the texture is found to be rough and unclear, then it may be a fake.
4.Sound: Tap your finger on the copper product, the real copper should have a crisp sound and the fake will make a dull sound.
5.Magnetic: Magnets do not absorb copper.
6.Observation section: Generally, the outer layer is scraped off, or the observation section is likely, and the pure copper is purple-red inside and out.
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Anonymous users2024-02-14Copper is purple-red, and the amount is heavier than other medicines. There is a certain toughness, and the traces drawn with a knife are also purple-red, and the toughness becomes greater and the hardness decreases after quenching. Green smoke emits when quenched. Doing an elemental analysis is the most sure method, and the rest is based on experience.
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Anonymous users2024-02-13Copper is industrial pure copper, its melting point is 1083, no allotrope transition, relative density is five times that of magnesium.
It is about 15% heavier than regular steel. It has a rose red color, and the surface is purple after forming an oxide film, so it is generally called copper. It is copper that contains a certain amount of oxygen, so it is also called oxygenated copper.
You can distinguish it by the color, and if you want to confirm it further, you can take it to the relevant departments for identification. , judging by the common sense of the common people, cut it, if the inside is the same as the outside, it is copper-colored, and it is very heavy, and the magnet can't absorb it. Then it's basically copper.
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Anonymous users2024-02-12Summary. Mainly from the color to identify the authenticity of copper:
Among them, brass and brass are easy to distinguish; Red copper is pure copper (impurities<1) and bronze (other alloy compositions are about 5), which is slightly difficult to distinguish. When it is not oxidized, the color of red copper is brighter than that of bronze, and the bronze is slightly cyan or yellow. When oxidized, the red copper turns black, while the bronze takes the color of turquoise (the harmful oxidation of water) or chocolate.
Copper, also known as red copper, is a copper element, named because its color is purple-red. Various properties are seen in copper. Copper is industrial pure copper, its melting point is 1083, no allotrope transition, and the relative density is five times that of magnesium.
The mass of the same volume is about 15% heavier than ordinary steel. Because it has a rose red color and is purple after the surface forms an oxide film, it is generally called copper. It is copper that contains a certain amount of oxygen, so it is also called oxygenated copper.
How to identify the authenticity of copper?
Please wait a minute.
Mainly from the color to identify the authenticity of copper: among them, white copper, brass is easy to distinguish; Red copper is pure copper (impurities<1) and bronze (other alloy compositions are about 5), which is slightly difficult to distinguish. When it is not oxidized, the color of red copper is brighter than that of bronze, and the bronze is slightly cyan or yellow. When oxidized, the red copper turns black, while the bronze takes the color of turquoise (the harmful oxidation of water) or chocolate.
Copper, also known as red copper, is a copper element, named because its color is purple-red. Various properties are seen in copper. Copper is industrial pure copper, its melting point is 1083, no allotrope transition, and the relative density is five times that of magnesium.
The mass of the same volume is about 15% heavier than ordinary steel. Because it has a rose red color and is purple after the surface forms an oxide film, it is generally called copper. It is copper that contains a certain amount of oxygen, so it is also called oxygenated copper.
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