2 thoughts on “Is it normal for gold to turn copper red?”
Beulah
Gold turning copper red is normal. 1. Many people like to buy gold, not only because they feel that they can preserve value, but also think that gold will not change color, but some people have "rust" after wearing it for a while. Is it "fake gold"? In fact, the gold itself has the attributes that are not easy to be oxidized. but the cosmetics we use in cash society contain various chemicals such as mercury, chlorine, lead, and sulfur. Attach to the gold surface, and these chemicals will "change color" after oxidation.
2, the discoloration of gold jewelry may be related to the color, but it may also be other problems, such as reaction with the mercury in cosmetics and perfumes, or the oxidation reaction of floating objects on the surface of the air and the surface of the jewelry. The color of the gold is currently marked by the national standard: foot gold, foot gold 999, foot gold 9999, AU900, and AU750 some K gold. The gold content of normal sufficient gold is more than 990 ‰, and there is no problem in color. If gold jewelry below 990 ‰ is less than 990 ‰, it will cause partial discoloration due to the problem of insufficient gold content. Essence 3, if you buy gold jewelry, whether it is three or nine or four nine, it is the same. In fact, gold does not distinguish about any brand. There are 3D models. It is recommended that if you choose gold, you should buy it with a gram. If you do n’t like it in the future, you can replace it with one gram. gold jewelry maintenance knowledge 1, soap, laundry powder and other alkaline chemicals will change the golden color, so you should take off the gold jewelry before cleaning or cleaning the kitchen hygiene, so as not to encounter these chemical composition.
2, the gold jewelry should be removed when swimming to prevent chemical changes in the surface layer after encountering seawater or pool water.
3. When storage, use a velvet cloth and put it in the jewelry box to prevent each other from conflicting.
4. You need to prevent directly touching high evaporation substances such as perfume or hair glue, otherwise the gold jewelry will fade.
Pay content for time limit to check for freenAnswer hello dear, it is abnormal, it means that gold is fakenGold is very stable in chemical properties in normal environments, and transforming copper red indicates that gold is fake. 1. Gold itself is not corroded, but its chemical affinity with sulfide is very strong, and it is easy to absorb hydrogen sulfide acid gases in the air. The surface shows dark colors such as orange, brown -red and other colors. The discoloration or fading of gold jewelry is closely related to human sweat. 99%of human sweats are water, and about 1%are waste and harmful substances in the human body. 2. When the full gold and thousands of gold products are in contact with dust, sulfur, acidic substances, etc. due to storage environment and climate change, "long spots", "rust" or discoloration may appear on the surface. This is because the surface of the gold jewelry is oxidized. In the last production process, the related equipment is not clean, or artificial contact with pollution. Gold turned white because of mercury to form mercury. The commonly used thermometer and pressure gauge in life are made of mercury. Some cosmetics, drugs, bactericides, etc. also contain mercury. If gold jewelry contacts them, it is possible to form golden mercury, so that the surface of the gold jewelry will be discolored. 3. Gold preservation: When saving the gold bars, pay attention to the sealing of its outer packaging to ensure the dryness and cleaning of the environment. Golden strips and gold jewelry should be particularly pay attention to avoid friction or long -term contact with iron and mercury.nHope answering is helpful to younIf you can, please like it! Thank you dear!n[whee]nQuestion how to distinguish copper and goldnAnswer 1. The fire burns with a fire for a few minutes. If it is flavonoids, the color will be dark, and the gold will not change color. This method is suitable for sufficient gold, which is not suitable for K gold, which is the distinguishing between alloy. 2. The hardness of the hardness gold is soft. It can be pinched with a little force. It can draw light marks with nails. The teeth can bite the dental marks. The flavonoids are too hard. 3. The inner side of the printed gold jewelry is marked with foot gold 999, 18K or AU750. If there are no these signs, or the English GK logo, it means that it is gold -plated, and the meaning of GK is gold -plated.nHope answering is helpful to younIf you can, please like it! Thank you dear!n[whee]nMore 8nBleak
Gold turning copper red is normal.
1. Many people like to buy gold, not only because they feel that they can preserve value, but also think that gold will not change color, but some people have "rust" after wearing it for a while. Is it "fake gold"? In fact, the gold itself has the attributes that are not easy to be oxidized.
but the cosmetics we use in cash society contain various chemicals such as mercury, chlorine, lead, and sulfur. Attach to the gold surface, and these chemicals will "change color" after oxidation.
2, the discoloration of gold jewelry may be related to the color, but it may also be other problems, such as reaction with the mercury in cosmetics and perfumes, or the oxidation reaction of floating objects on the surface of the air and the surface of the jewelry. The color of the gold is currently marked by the national standard: foot gold, foot gold 999, foot gold 9999, AU900, and AU750 some K gold.
The gold content of normal sufficient gold is more than 990 ‰, and there is no problem in color. If gold jewelry below 990 ‰ is less than 990 ‰, it will cause partial discoloration due to the problem of insufficient gold content. Essence
3, if you buy gold jewelry, whether it is three or nine or four nine, it is the same. In fact, gold does not distinguish about any brand. There are 3D models. It is recommended that if you choose gold, you should buy it with a gram. If you do n’t like it in the future, you can replace it with one gram.
gold jewelry maintenance knowledge
1, soap, laundry powder and other alkaline chemicals will change the golden color, so you should take off the gold jewelry before cleaning or cleaning the kitchen hygiene, so as not to encounter these chemical composition.
2, the gold jewelry should be removed when swimming to prevent chemical changes in the surface layer after encountering seawater or pool water.
3. When storage, use a velvet cloth and put it in the jewelry box to prevent each other from conflicting.
4. You need to prevent directly touching high evaporation substances such as perfume or hair glue, otherwise the gold jewelry will fade.
Pay content for time limit to check for freenAnswer hello dear, it is abnormal, it means that gold is fakenGold is very stable in chemical properties in normal environments, and transforming copper red indicates that gold is fake. 1. Gold itself is not corroded, but its chemical affinity with sulfide is very strong, and it is easy to absorb hydrogen sulfide acid gases in the air. The surface shows dark colors such as orange, brown -red and other colors. The discoloration or fading of gold jewelry is closely related to human sweat. 99%of human sweats are water, and about 1%are waste and harmful substances in the human body. 2. When the full gold and thousands of gold products are in contact with dust, sulfur, acidic substances, etc. due to storage environment and climate change, "long spots", "rust" or discoloration may appear on the surface. This is because the surface of the gold jewelry is oxidized. In the last production process, the related equipment is not clean, or artificial contact with pollution. Gold turned white because of mercury to form mercury. The commonly used thermometer and pressure gauge in life are made of mercury. Some cosmetics, drugs, bactericides, etc. also contain mercury. If gold jewelry contacts them, it is possible to form golden mercury, so that the surface of the gold jewelry will be discolored. 3. Gold preservation: When saving the gold bars, pay attention to the sealing of its outer packaging to ensure the dryness and cleaning of the environment. Golden strips and gold jewelry should be particularly pay attention to avoid friction or long -term contact with iron and mercury.nHope answering is helpful to younIf you can, please like it! Thank you dear!n[whee]nQuestion how to distinguish copper and goldnAnswer 1. The fire burns with a fire for a few minutes. If it is flavonoids, the color will be dark, and the gold will not change color. This method is suitable for sufficient gold, which is not suitable for K gold, which is the distinguishing between alloy. 2. The hardness of the hardness gold is soft. It can be pinched with a little force. It can draw light marks with nails. The teeth can bite the dental marks. The flavonoids are too hard. 3. The inner side of the printed gold jewelry is marked with foot gold 999, 18K or AU750. If there are no these signs, or the English GK logo, it means that it is gold -plated, and the meaning of GK is gold -plated.nHope answering is helpful to younIf you can, please like it! Thank you dear!n[whee]nMore 8nBleak