1, cleaning chemicals will change the color of gold, so take off the gold ornaments before cleaning.
2. Avoid direct contact with volatile substances such as perfume and hair gel, otherwise it will easily lead to the fading of gold ornaments.
3. Take off the gold ornaments when swimming to avoid chemical changes on the surface after contact with seawater or pool water.
4. Wrap it in flannel and put it in a jewelry box when keeping it to avoid mutual friction and damage.
5. Gold is soft and easy to deform. Do not pull necklaces and other accessories to avoid deformation.
6. Pure gold jewelry will react chemically when it encounters mercury, and white spots will appear. When cleaning, as long as you barbecue under the alcohol lamp for a while, it will return to its original color.
7. After wearing, gold ornaments often lose their luster due to stains and dust. At this time, just put the gold ornaments in a neutral detergent, soak them in warm water, and then take them out and dry them.
Question 2: What is the fear of the Persian alchemist Jaber wearing gold jewelry with hydrochloric acid around 800? Ibn？ Jabir ibn Hayyan found it when mixing salt with alum (sulfuric acid). He mixed hydrochloric acid with nitric acid and invented aqua regia which can dissolve gold.
Aqua regia, also known as aqua regia and nitrohydrochloric acid, is a highly corrosive liquid with yellow smoke. It is a mixture of concentrated hydrochloric acid (HCl) and concentrated nitric acid (HNO3). The mixing ratio can be seen from the name: aqua regia, three horizontal and one vertical, so the volume ratio of hydrochloric acid and nitric acid is 3: 1. It is one of the few substances that can dissolve gold (Au), which is also the origin of its name. Aqua regia is generally used in etching process and some detection and analysis processes, but PTFE, the king of plastics, and some inert pure metals such as tantalum (Ta) are not corroded by aqua regia (as well as silver chloride and barium sulfate). Aqua regia decomposes easily and smells of chlorine, so it must be used now.
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Question 3: What is gold afraid of, afraid of being stolen?
Question 4: What is gold afraid of? 1. Don't swim with gold ornaments.
Although the chemical reaction between gold and other substances is not active, it still needs to be worn with extra care. For example, it is absolutely inappropriate to wear gold ornaments when swimming in the swimming pool. Because the water in the swimming pool is chlorinated, chlorine gas may make the gold ornaments oxidized and dull.
2. Don't wash with bleach
Whether the bleach is diluted or not, the chemical components contained in it will affect the color of gold, making it impossible to restore its former glory, and will also affect its natural color.
Don't wear gold ornaments when you have a haircut.
When you go to the hair salon for hair care, especially when dyeing hair and perming hair, remember to take off the necklace or earrings first, because the chemical components contained in the hair dye and hair gel will discolor the joints or buttons on the gold ornaments and destroy the overall aesthetic feeling of the gold ornaments.
4. Beware of excessive temperature difference
Because of the high heat transfer rate of gold, the heat of steam may burn the skin through the gold ornaments, so remember to take off the gold ornaments when enjoying the steam bath.
Maintenance skill
Dilute with mild soap or hand sanitizer with water every one to two weeks, and gently wipe with a soft brush to remove dust and dirt on the surface of gold ornaments.
Do not clean gold ornaments with excellent brushes, because bristles will rub the surface of pure gold and may scratch the surface. Try to clean the dirt of gold ornaments with the impulse of water column, instead of using a brush. After cleaning, dry it with soft cotton cloth or let it dry naturally.
If it is found that none of the above methods can restore the former glory of gold ornaments, it may be because the surface of gold ornaments is exposed to foreign objects, such as dust? P dirt and other chemical reactions. To thoroughly clean the gold ornaments, just take them to the jewelry store for ultrasonic cleaning.
Question 5: What is gold afraid of? What is fire?
Question 6: What do gold rings fear most?
Question 7: What are Jin's five elements most afraid of? The five elements of gold are actinium (15), polonium (17) and ammonium (14). L( 17)，X ( 19)，X ( 18)，VIII (8)，Ba ( 1 1)，Pd ( 12) G( 19)，？ Q( 18)，Bi (2)，Bi ( 13)，Bi ( 13)，Bi ( 16)，？ {( 18), edge (16), edge (2 1), braid (20), dart (19), farewell (23), cymbal (22), bowl. (25), Zhong (17), Wei (22), Chai (1 1),? A( 15), terbium (20),? K(25), shovel (19), intestine (15),? (16), Chang (14), Chao (12), Yi (12), Dang (2 1), Cheng (14).
Question 8: What money do people who belong to gold fear most?
Question 9: What is gold afraid of corrosion? What gold necklace is not very delicate, but it will lose its original luster and charm if it is not carefully maintained. Generally speaking, the following points should be careful:
1, cleaning chemicals will change the color of gold, so take off the gold ornaments before cleaning.
2. Avoid direct contact with volatile substances such as perfume and hair gel, otherwise it will easily lead to the fading of gold ornaments.
3. Take off the gold ornaments when swimming to avoid chemical changes on the surface after contact with seawater or pool water.
4. Wrap it in flannel and put it in a jewelry box when keeping it to avoid mutual friction and damage.
5. Gold is soft and easy to deform. Do not pull necklaces and other accessories to avoid deformation.
6. Pure gold jewelry will react chemically when it encounters mercury, and white spots will appear. When cleaning, as long as you barbecue under the alcohol lamp for a while, it will return to its original color.
7. After wearing, gold ornaments often lose their luster due to stains and dust. At this time, just put the gold ornaments in a neutral detergent, soak them in warm water, and then take them out and dry them. report