Gold is stable in nature and not afraid of water, because it is a beautiful golden yellow metal with high density, low hardness, high melting point and boiling point. It does not oxidize with oxygen at any temperature, nor is it soluble in hydrochloric acid, sulfuric acid, nitric acid and other separate acids. It does not change even under the action of moisture, air, acids, alkalis, salts and other substances
it is only necessary to pay attention not to touch the cosmetics when wearing them everyday. If the gold contacts the mercury in the cosmetics, the gold surface will turn white. When swimming, take off the gold ornaments to avoid chemical changes on the surface after touching the seawater or pool water. The chemical substances of the detergent will also change the color of the gold. Therefore, take off the gold ornaments before cleaning.. After wearing, the gold ornaments often lose luster due to dirt and dust. At this time, just put the gold ornaments in a neutral detergent, soak them in warm water and clean them, then take them out and wipe them dry
extended data:
the gold content of pure gold jewelry is more than 99%, up to 99.99%, so it is also known as "nine gold", "ten gold" and "red gold". In order to overcome the disadvantages of gold such as high price, low hardness, single color, easy wear and poor pattern, some other metal elements are usually added to pure gold to increase the hardness of jewelry gold, change its hue and reduce its melting point, so that gold alloy jewelry with different fineness and gold content appears. The K-gold system is an internationally popular gold measurement standard, and gives K-gold an accurate gold content standard, thus forming a series of K-gold jewelry
k number and gold content are as follows: 24K, above 99%; 22K，91.7%； 21K，87.5%； 18K，75%； 14K，58.5%； 12K，50%； 10K，41.66%； 9K，37.5%； 8K，33.34% ； 6K，25%。
Of course you can touch the water the chemical properties of gold are quite stable. Only industrial aqua regia can dissolve it gold jewelry may be dark after wearing for a long time. At this time, it will shine as new as soon as it is brought to the store.
a TV shopping e-salesman successfully sold a gold necklace to a certain upstart. The upstart did not take off the gold necklace when he took a bath. As a result, he found it faded after taking a bath. He called the salesman and asked him that the gold necklace should not be taken with him when he took a bath
gold is sure to touch the water, and you should identify the brand when buying gold.
Gold is stable in nature and not afraid of water, because it is a beautiful golden yellow metal with high density, low hardness, high melting point and boiling point. It does not oxidize with oxygen at any temperature, nor is it soluble in hydrochloric acid, sulfuric acid, nitric acid and other separate acids. It does not change even under the action of moisture, air, acids, alkalis, salts and other substances
it is only necessary to pay attention not to touch the cosmetics when wearing them everyday. If the gold contacts the mercury in the cosmetics, the gold surface will turn white. When swimming, take off the gold ornaments to avoid chemical changes on the surface after touching the seawater or pool water. The chemical substances of the detergent will also change the color of the gold. Therefore, take off the gold ornaments before cleaning.. After wearing, the gold ornaments often lose luster due to dirt and dust. At this time, just put the gold ornaments in a neutral detergent, soak them in warm water and clean them, then take them out and wipe them dry
extended data:
the gold content of pure gold jewelry is more than 99%, up to 99.99%, so it is also known as "nine gold", "ten gold" and "red gold". In order to overcome the disadvantages of gold such as high price, low hardness, single color, easy wear and poor pattern, some other metal elements are usually added to pure gold to increase the hardness of jewelry gold, change its hue and reduce its melting point, so that gold alloy jewelry with different fineness and gold content appears. The K-gold system is an internationally popular gold measurement standard, and gives K-gold an accurate gold content standard, thus forming a series of K-gold jewelry
k number and gold content are as follows: 24K, above 99%; 22K，91.7%； 21K，87.5%； 18K，75%； 14K，58.5%； 12K，50%； 10K，41.66%； 9K，37.5%； 8K，33.34% ； 6K，25%。
reference source: Baidu Encyclopedia - gold jewelry
Of course you can touch the water
the chemical properties of gold are quite stable. Only industrial aqua regia can dissolve it
gold jewelry may be dark after wearing for a long time. At this time, it will shine as new as soon as it is brought to the store.
I once heard a joke that is also true:
a TV shopping e-salesman successfully sold a gold necklace to a certain upstart. The upstart did not take off the gold necklace when he took a bath. As a result, he found it faded after taking a bath. He called the salesman and asked him that the gold necklace should not be taken with him when he took a bath
gold is sure to touch the water, and you should identify the brand when buying gold.
Gold jewelry is easy to oxidize, can it be stained with water?