Jewelry knowledge Gold is a natural precious metal with the chemical symbol Au. Children who have studied chemistry know that elements like natural metals such as iron, tribute, copper, sulfur, etc. will chemically react with each other to produce sodium sulfide! Copper oxide ~ and so on! They are a black or white chemical salt! Therefore, gold will appear black and white. So what is the situation that causes gold to change color? Remember to take the gold off and pick it up! 1. When going to the swimming pool, the pool water is treated with chlorination. When the gold ornaments are soaked for a long time, the surface gloss is affected, and the heavy reaction with the chlorine in the swimming pool causes discoloration. 2, when going to the hair salon, especially hair dye or perm, if it is dyed by hair dye or perm lotion (because hair gel, hair dye, shampoo, etc. in the hair salon contain a lot of chemicals, it can smell very pungent from the smell Nasal), extremely easy to cause discoloration of precious metals! 3, when wiping skin care products and make-up, should wear gold jewelry after spraying high-volatility substances such as perfume and hair gel. This is also to prevent gold discoloration (not only gold, natural precious metals include platinum PT, Silver Ag (17.66, -0.02, -0.11%), etc.). 4. The heat transfer efficiency of the other thousand gold is very high, so don't forget to take off the gold ornaments before enjoying the sauna and other activities. 5, there is a trace of sulfur in the sweat of the human body, in the case of strenuous exercise and sweating, it should be noted that gold will produce black chemical salt and lead to blackening! Don't worry if you encounter the above situation! Although true gold is prone to chemical reaction discoloration, it is not easy to corrode! This is also the reason why real gold is not afraid of fire! Just go to the regular jewelry store to clean and restore the original brilliance! Gold jewelry is not very delicate, but without careful maintenance, it will lose its original luster and charm. In general, you should pay attention to the following points A. The chemicals in the detergent will change the color of the gold, so the gold jewelry should be removed before cleaning. B. Avoid direct contact with high volatile substances such as perfumes and hair gels, otherwise the gold ornaments will fade. C. Remove the gold ornaments when swimming, so as to avoid chemical changes in the surface after encountering sea water or pool water. D. When storing, wrap it in a velvet cloth and put it in the jewelry box to avoid mutual friction damage. E. Gold is soft and easy to deform, so don't pull the jewelry to avoid deformation. F. Thousands of gold jewelry will produce a chemical reaction when it encounters mercury, and white spots appear, but it does not matter, as long as you get the point of sale for cleaning, you can restore the original. G. The worn gold jewelry often loses its luster due to the stain and dust. At this time, just put the gold ornament in a neutral detergent and wash it with warm water, then remove it and wipe it dry. Women Pants,Fitness Yoga Pant,Printing Yogs Pants,Women Fitness Leggings SHAOXING LIDONG TRADING CO.,LTD , https://www.lidonggarments.com
