True gold is not afraid of fire, it is our very common perception of gold. Therefore, we often think that gold is a very stable precious metal. For the report of gold rust on the market, some consumers find it unbelievable. Is it really because the purity of gold is not enough to cause rust? What is the specific principle? Analysis of the discoloration phenomenon of gold and thousands of gold jewelry is divided into different varieties according to the different gold content. China's national standard GB11887 divides the gold jewelry into: 999‰ thousand gold, 990‰ gold, 916‰ 22K gold , 750 ‰ 18K gold, 585 ‰ 14K gold, 375 ‰ 9K gold. For a long time, consumers have always believed that gold and thousands of gold jewellery will never change color. Once the beloved thousand gold and gold jewelry are discolored, it is considered that the amount of jewellery purchased is insufficient, and the business theory or return is to be found. The problem of discoloration of gold and thousands of gold jewelry makes consumers and businesses very hard-working, but the reason for discoloration is very simple: The main points are as follows: First, the gold content of gold jewelry is more than 99‰, the content of thousands of gold jewelry is more than 999‰, and its gold content is not 100%. This shows that although their gold content is high, they may be doped with other elements. The presence of red, white, purple, and black spotted color regions on their bodies may be small. 2. When gold is worn together with white jewellery such as white gold or silver, it is very likely that the metal of the white jewellery will be smeared on the gold jewellery or the gold will be smeared on the white jewellery due to the friction between the jewels. The rubbed parts appear only on the surface and are scratch-like. Third, there is a chemical term called "amalgam", the so-called amalgam is an amalgam. Mercury can form an amalgam with all metals except iron. The whitening of gold also has the reason for the formation of amalgam in the presence of mercury. Mercury is also called mercury. The atomic number is greater than gold by 1 and the color is silver white. The liquid metal is easy to flow. The boiling point is 356.58 ° C. The steam is highly toxic. Thermometers, barometers, and vapor lamps commonly used in daily life are made of mercury, and inferior cosmetics, drugs, fungicides, and the like may also have mercury. If you do not pay attention to contact with gold jewelry, gold amalgam will be formed. Therefore, the surface color of the gold jewelry becomes white, and the sex becomes brittle. If the area is large, it will be broken on the ground. Fourth, the full gold and thousands of gold jewelry placed in the environment containing S for a long time, the surface may have erythema; when the gold and thousands of gold jewelry and acid contact, there may be erythema. This is due to the oxidation of the internal impurity elements to produce an oxide layer on the surface of the gold jewelry. When the above situation occurs, don't worry, first consult the relevant experts, find a professional organization for identification; then, according to the specific situation, deal with the expert's suggestion, the problem of discoloration will be solved. ------------------------------------------------ Gold jewelry maintenance 25 points of attention 1, salt and vinegar mixed into a cleaning agent, use it to wipe pure gold jewelry, can make a long time new. 2, to protect the luster of gold jewelry, you can apply a thin layer of nail polish on it. 3, the ring of jeweled rolls a piece of cotton with a popsicle or matchstick, after dampening in a mixture of toilet water and glycerin, scrub the frame of the gemstone, and then polish the ring with a flannel. Never use a sharp object like a blade to scrape. 4, the water column can also replace the soft brush. 5, toothpaste wipe or scrub with hot rice soup, can also restore luster. 6, if the surface has a black silver film, you can use 2 grams of salt, 7 grams of baking soda, 8 grams of bleaching powder, 60 ml of water, formulated into a "golden cleaning agent", put gold jewelry in a bowl, pour into the cleaning After 2 hours, remove the gold jewelry, rinse with water (preferably not hard water), bury it in wood chips, and then wipe it with a soft cloth. 7, gold jewelry often worn, should be cleaned and inspected once a month. 8, clean gold ornaments, the use of mild soap and soft brush is the easiest and most convenient way. 9. Do not expose jewelry to chemicals. 10, to avoid wearing heavy gold when wearing gold, especially the ring. 11, do not make pure gold jewelry contact perfume, hair spray and other high volatile substances, otherwise it will easily lead to fading of gold ornaments. 12, pure gold jewelry due to sweat or dust in the air and tarnished, can be placed in neutral detergent warm water or commercially available maintenance solution for a few minutes, then rub with the material. 13, pure gold jewelry in the case of mercury will produce chemical changes, white spots appear, must be grilled on the alcohol lamp for a while, can restore the original color. 14, pure gold jewelry should not be shared and worn with other jewelry or other metal jewelry (including K gold jewelry), so as not to knock on the surface of worn gold jewelry. 15, the current popular leather leather rope with pure gold jewelry maintenance: leather leather rope do not touch the water, do not vigorously rub the leather rope. Do not let the leather cord approach high heat and avoid direct sunlight for a long time. 16, pure gold jewelry is always the last step in the wear of clothing and the first action when unloading. 17, when you store it, wrap it in a velvet cloth and put it in the jewelry box to avoid mutual friction and damage. 18, remove the gold ornaments when swimming, so as not to touch the sea water or pool water, the surface of the chemical changes. 19. After wearing, the gold ornaments often lose their luster due to stains and dust. At this time, just put the gold ornaments in a neutral detergent and soak them in warm water, then remove them and wipe them dry. 20, gold is relatively soft, easy to deform, so do not pull necklaces and other accessories, so as not to deform. 21, do not wear gold ornaments to wash the hot springs, in case of discoloration, just send it to the silver building to clean. 22, the gold ring and the platinum ring wear the same hand, it is easy to cause the two to rub each other, so that the surface of the gold ring is partially platinum and white. For such a white gold jewellery, you can use an agate knife to plan the light, or you can use a coarse cloth (such as canvas) to rub it hard to restore the gold. 23, the chemical of cleansing will change the color of gold, so you should take off the gold jewelry before cleaning. 24, the gold ornaments after wearing often lose their luster due to stains and dust. At this time, just put the gold ornaments in a neutral detergent and soak them in warm water and wash them, then remove them and wipe them dry. 25, regional environmental factors may also make gold jewelry lose its bright color. For example, in a dry area, the air contains more original fine dust, which will form a kind of “human body sandpaper†when it is contaminated with the human body. It can rub the gold jewelry into extremely fine debris and appear partial black stains. It is worth mentioning that the talcum powder or moisturizer also contains similar particles, which will also eclipse the gold jewelry as mentioned above. Treatment: Brush with soapy water mixed with a little alcohol, rinse and dry. Trendy Plus Size Jumpsuits,2 Piece Jumpsuit,Peplum Jumpsuit,Monsoon Jumpsuit Shaoxing hjh clothes.co.ltd , https://www.hjhclothes.com
August 18, 2022