Which gold is pure in Chinese gold and old Fengxiang
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Which gold is pure in Chinese gold and old Fengxiang
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Hello, in fact, the purity of gold has nothing to do with the brand. When you buy it, it mainly depends on whether it is 999 gold or 9999 gold. There is also 90%of cashmere. See which one you want to buy, I recommend buying gold without choosing a brand. You can choose some large shopping malls and regular stores to buy it.
. How to distinguish the golden color?
Gold (GOLD) is a single form of chemical element gold (AU). It is a soft, golden, corrosive precious metal. Gold is one of the rare, precious and extremely valued metals. Internationally, gold is generally based on ounces. In ancient China, "two" was used as a gold unit, and it was a very important metal. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments.
The purity of gold with "K gold". The national standard GB11887-89 stipulates that each opening (often writing "K") has a gold content of about 4.166%. (333 ‰)
9k = 9*4.166%= 37.494%(375 ‰)
10k = 10*4.166%= 41.660%(417 ‰)
12K = 12*4.166%= 49.992%(500 ‰)
14k = 14*4.166%= 58.324%(583 ‰)
18k = 18*4.166%= 74.998%(750 ‰)
20K = 20*4.166%= 83.320%(833 ‰)
21k = 21*4.166%= 87.486%(875 ‰)
22k = 22*4.166%= 91.652%(916 ‰)
24K = 24*4.166%= 99.984%(999 ‰) r
24k gold is considered pure gold and became "1000 ‰", but the actual gold content was 99.99%, and it was 23.988k.
. Gold cleaning method?
1. The gloss of the gold jewelry can be applied to a layer of nail polish thinly on it.
2. If there are black silver films on the surface, 2 grams of salt, 7 grams of soda, 8 grams of bleaching powder, 60 ml of clear water, are made into a "golden device cleaning agent", put the gold jewelry in a bowl, and the golden jewelry is in a bowl. Pour in the cleaning agent. After 2 hours, remove the golden jewelry, rinse with water (preferably not hard water), buried in the wood chips to dry, and then wipe it with a soft cloth.
3, the ring inlaid with a cotton roll with a popsicle or match stick, wet the gemstone and its frame in the mixed fluid of the dew and glycerin, and then use the velvet cloth to brighten the ring. Do not scrape it with a kind of sharp objects.
4, salt and vinegar mixed synthetic cleaning agent, using it to wipe the pure gold jewelry, which can make a long time.
5, wipe or scrub with hot rice soup with hot rice, can also restore gloss.
6, scrubbing with ammonia water
In fact, the purity of gold has nothing to do with the brand. When you buy it, the label mainly depends on whether it is 999 gold or 9999 gold. This is well understood. We go to buy cashmere sweater. 90%of the cashmere, depending on which one you want to buy, I recommend buying gold without choosing a brand. You can choose some large shopping malls and regular stores.
Pay content for time limit to check for freenAnswer, please waitnHello, I personally feel that Lao Fengxiang is better! Shanghai Laofengxiang Co., Ltd. comes from the development of Lao Fengxiang Yinlou, which was founded in 1848. The creativity of its trademark "Lao Fengxiang" also stems from the name of Lao Fengxiang Yinlou. It has experienced the vicissitudes of more than a hundred years, and adhered to the brand consensus with "old brand, new style, fine craftsmanship, and good reputation". Lao Fengxiang has a good performance in many industries in many industries. It is a Fortune 500 company, a century -old national brand, and a famous jewelry brand in China.
When I asked this, I know that you are a layman. Those who need welded materials can reach 9999, and the jewelry is less than 9999 after adding the solder, so the state stipulates that the highest standard for jewelry gold is thousands of gold. Chinese gold and Lao Fengxiang are all thousands of gold, just styles and brands. They are all big brands of our country, large factory goods, and the quality is absolutely reliable, but before buying, you must be optimistic about whether these two brands are true, because these two brands are generally more expensive than other brands. s reason!
Hehe, it depends on what gold is, gold is divided into foot gold, thousands of gold, thousands of gold, and now the gold is almost small. Both gold are almost the same. As long as they are the same gold, which are said to be the same as three 9, 8, or three 9 and 5. As long They are the same. As long as they are thousands of gold, they are mainly distinguished from workmanship, style brand! So which big brands are sold for brands and which styles are slightly better.