Different hardness. Gold: Pure gold is soft and low. It can draw light marks with nails. The teeth can leave the dental marks. The high -quality gold jewelry is lower than the soft color. Bonor: The more bronze, the harder, the more the bending method can test the hardness, the pure gold is soft, it is easy to bend, the lower the purity, the less likely to bend. The density. Gold density is large, and brass density is small. grill with fire. Gold: True gold is not afraid of fire, and the gold will be burned red with fire. After cooling, the color changes are observed. If the surface is still the original golden color, it is pure gold. Bronze: Because of copper, it will be oxidized into black copper oxide under fire. In other words, if the color becomes darker or darkened to varying degrees, it may be brass. Generally, the lower the color, the stronger the color. This is diluted. Gold: It has strong corrosion resistance, and there is no bubbles in dilute acid.
BOC: Put it into a thin acid. There is a fake on the bubble, because the fakes are mostly mixed with zinc, which will react with the acid. This with acetaldehyde and CUSO4 solution. Gold: The same reason is the same as above, gold is strong corrosive, and after heating, there is no response. Bronze: After heating, put it in the acetaldehyde solution. The reddish (that is, fake gold), plus CUSO4 solution, and red metal precipitated by brass.
Pay content for time limit to check for freenAnswer Hello, I have seen your question, editing related information for you, please wait a while ~ n1 From the perspective of the naked, the golden luster is relatively strong, and the granular density on the surface is very delicate. Although the brass has some luster, compared to gold, the color is dull and the surface particles are rough. 2 Although the appearance of brass is similar to gold, the stability of the nature of brass is much worse than gold. When wearing a long time, it will cause surface oxidation, gray -black, and affect the beauty of jewelry. After the brass is oxidized, it can be polished and polished, so that the brass can restore the gloss. 3 General gold jewelry will have a symbol of color, such as "Foot Gold 990" or "Thousands of Gold 999". 4 The difference between the hardness of the gold and the brass is very large. The hardness of the brass is relatively high. There will be small traces with nails, and thin gold is easy to bend. Bronze has a strong wear resistance. After wearing it for a while, the surface is not easy to scratch except oxidation, but gold will have many scratches or some depression. 5 Comparison from the weight, the density of gold is very high, and the weight is relatively large. Putting it in the palm of the palm will have a sense of oppression. In the same volume, the weight of gold may be twice as high as the bronze, so the same volume of gold and brass are placed in the palm of the palm, and the type of gold is very high.
Different hardness. Gold: Pure gold is soft and low. It can draw light marks with nails. The teeth can leave the dental marks. The high -quality gold jewelry is lower than the soft color. Bonor: The more bronze, the harder, the more the bending method can test the hardness, the pure gold is soft, it is easy to bend, the lower the purity, the less likely to bend.
The density. Gold density is large, and brass density is small.
grill with fire. Gold: True gold is not afraid of fire, and the gold will be burned red with fire. After cooling, the color changes are observed. If the surface is still the original golden color, it is pure gold. Bronze: Because of copper, it will be oxidized into black copper oxide under fire. In other words, if the color becomes darker or darkened to varying degrees, it may be brass. Generally, the lower the color, the stronger the color.
This is diluted. Gold: It has strong corrosion resistance, and there is no bubbles in dilute acid.
BOC: Put it into a thin acid. There is a fake on the bubble, because the fakes are mostly mixed with zinc, which will react with the acid.
This with acetaldehyde and CUSO4 solution. Gold: The same reason is the same as above, gold is strong corrosive, and after heating, there is no response. Bronze: After heating, put it in the acetaldehyde solution. The reddish (that is, fake gold), plus CUSO4 solution, and red metal precipitated by brass.
Pay content for time limit to check for freenAnswer Hello, I have seen your question, editing related information for you, please wait a while ~ n1 From the perspective of the naked, the golden luster is relatively strong, and the granular density on the surface is very delicate. Although the brass has some luster, compared to gold, the color is dull and the surface particles are rough. 2 Although the appearance of brass is similar to gold, the stability of the nature of brass is much worse than gold. When wearing a long time, it will cause surface oxidation, gray -black, and affect the beauty of jewelry. After the brass is oxidized, it can be polished and polished, so that the brass can restore the gloss. 3 General gold jewelry will have a symbol of color, such as "Foot Gold 990" or "Thousands of Gold 999". 4 The difference between the hardness of the gold and the brass is very large. The hardness of the brass is relatively high. There will be small traces with nails, and thin gold is easy to bend. Bronze has a strong wear resistance. After wearing it for a while, the surface is not easy to scratch except oxidation, but gold will have many scratches or some depression. 5 Comparison from the weight, the density of gold is very high, and the weight is relatively large. Putting it in the palm of the palm will have a sense of oppression. In the same volume, the weight of gold may be twice as high as the bronze, so the same volume of gold and brass are placed in the palm of the palm, and the type of gold is very high.