it is true. The gold products with high purity of high purity reached 99.999%are called high -purity gold and marked as AU99999. Gao Chunjin is higher than the purity of AU9999, more red and pure. The gold has excellent ductility and forgedness. It has very high thermal conductivity and conductivity. Gold is extremely stable in air and water. It will not be oxidized at low temperature or high temperature. Only dissolved in the king water and sodium cyanide, and potassium cyanide solution. The method of high -purity gold can be combined with electrolytic refining method and regional melting method. Extension information: Gold related requirements: 1. Gold is not a trading product exclusively for a certain country, but a global transaction product. Therefore, when the gold market of one country is closed, the gold market of another country opposite the earth is opening. Since the trading time around the world has been traded in a front line, gold can be traded at any time within 24 hours. 2. China has regulations on the mark and logo of gold products. It requires production enterprise codes, materials names, content marks, etc., and unqualified products are unqualified products. The same is true internationally, but it is allowed to not be marked with some small products. 3, gold, as a precious metal, has good physical characteristics. "Real gold is not afraid of fire refining" is that the chemical stability of gold is very high. It is not easy to have chemical reactions with other substances. Do not worry about oxidation and discoloration. Reference information Source: Baidu Encyclopedia-Gao Chunjin
The gold of 5 9 is the publicity method of the merchant. If the golden test report cannot be presented, it is fake. GB11887-2012 "Regulations and Name Methods of Jewelry Pure Metals" No. 1 modification form, will be implemented from May 4, 2016. In the future, even if it is a gold jewelry with a purity of 999.0 ‰, it can only be marked as "foot gold", not. It's called "Thousands of Gold". The gold jewelry sold on the market is mostly equipped with inspection logos from quality inspection agencies. The logo clearly indicates the gold content and weight of the jewelry. 999 gold is also called thousands of gold, and the gold content is not less than 999 ‰; 990 gold is called sufficient gold, and the gold content is not less than 990 ‰; the gold content of 22K gold is not less than 916 ‰; the gold content of 18K gold is not less than 750 ‰ ; The gold content of 14K gold is not less than 585 ‰; the gold content of 9K gold is not less than 375 ‰. Pucting information: The media shopping professional committee of the China Commercial Federation reported that the gold content of these "gold jewelry" was tested, and it also contained toxic elements such as cadmium, lead, nickel, and even some cadmium exceeded standards. 3000 times. In the recent monitoring of the Media Purchasing Commission, more than 20 satellite TVs including Liaoning Satellite TV and Guangdong Satellite TV are publishing TV shopping advertisements for low -cost sales of gold jewelry. Under the notarization of the lawyer and notarization office, the Media Purchase Commission commissioned the National Jewelry Quality Supervision and Inspection Center to check the sampling of some gold jewelry in TV shopping, and to obtain the above -mentioned inspection results. If according to the existing test report, TV shopping advertisements have constituted false publicity. The China Commercial Federation Media Purchasing Commission said that the products promoted by the advertisement are actually fake gold jewelry, toxic and harmful three -free products, and their behavior has been suspected of crime. Reference materials Source: Baidu Encyclopedia-Thousand Foot Gold Reference Data Source: People's Daily-Gold Jewelry Shopping Advertising Display Display Display Gold and Poisonous Poison N
From thousands of gold (purity 99.9%) to 10,000 -foot gold (99.99%), to today's high purity (purity 99.999%, purity 999999%), the gold industry moves all the way on the road of pursuing purity. Sales staff who sell gold will always recommend higher purity. The reason is "the more pure the better", but does Gao Chunjin really make sense to consumers? Is it worth buying more than a dozen or even tens of yuan per gram? , as a precious metal, gold is refined from the ore of nature. It will be brought in in a series of process processes such as mining, processing, purity, and jewelry manufacturing. In terms of purity, the current process can only reach 99.9999%, which is already the Guinness World Record.
The gold of 999.99 is also called Qianchin. You have to be optimistic about whether there is that point in 5 9. 99.999 is also possible. It is true. If only 99999 is 99999, it may be false.
The gold of 999.99 is also called Qianchin. You have to be optimistic about whether there is that point in 5 9. 99.999 is also possible. It is true. If only 99999 is 99999, it may be false. Gold cleaning method: This to protect the gloss of the gold jewelry, you can apply a layer of nail polish thinly on it. If on the surface, there are black silver films, 2 grams of salt, 7 grams of soda, 8 grams of bleaching powder, and 60 ml of clear water. After entering 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. This rings of gemstones roll a piece of cotton with popsicles or match sticks. After wetting in the mixed fluid of flower dew and glycerin, scrub the gem and its frame, and then use a velvet cloth to lighten the ring. Do not scrape it with a kind of sharp objects. The mixed synthetic cleaner with salt and vinegar to wipe the pure gold jewelry with it to make it new for a long time. This to toothpaste or scrubbing with hot rice soup can also be restored. This can be scrubded with ammonia water
it is true.
The gold products with high purity of high purity reached 99.999%are called high -purity gold and marked as AU99999. Gao Chunjin is higher than the purity of AU9999, more red and pure.
The gold has excellent ductility and forgedness. It has very high thermal conductivity and conductivity. Gold is extremely stable in air and water. It will not be oxidized at low temperature or high temperature. Only dissolved in the king water and sodium cyanide, and potassium cyanide solution. The method of high -purity gold can be combined with electrolytic refining method and regional melting method.
Extension information:
Gold related requirements:
1. Gold is not a trading product exclusively for a certain country, but a global transaction product. Therefore, when the gold market of one country is closed, the gold market of another country opposite the earth is opening. Since the trading time around the world has been traded in a front line, gold can be traded at any time within 24 hours.
2. China has regulations on the mark and logo of gold products. It requires production enterprise codes, materials names, content marks, etc., and unqualified products are unqualified products. The same is true internationally, but it is allowed to not be marked with some small products.
3, gold, as a precious metal, has good physical characteristics. "Real gold is not afraid of fire refining" is that the chemical stability of gold is very high. It is not easy to have chemical reactions with other substances. Do not worry about oxidation and discoloration.
Reference information Source: Baidu Encyclopedia-Gao Chunjin
The gold of 5 9 is the publicity method of the merchant. If the golden test report cannot be presented, it is fake. GB11887-2012 "Regulations and Name Methods of Jewelry Pure Metals" No. 1 modification form, will be implemented from May 4, 2016. In the future, even if it is a gold jewelry with a purity of 999.0 ‰, it can only be marked as "foot gold", not. It's called "Thousands of Gold".
The gold jewelry sold on the market is mostly equipped with inspection logos from quality inspection agencies. The logo clearly indicates the gold content and weight of the jewelry. 999 gold is also called thousands of gold, and the gold content is not less than 999 ‰; 990 gold is called sufficient gold, and the gold content is not less than 990 ‰; the gold content of 22K gold is not less than 916 ‰; the gold content of 18K gold is not less than 750 ‰ ; The gold content of 14K gold is not less than 585 ‰; the gold content of 9K gold is not less than 375 ‰.
Pucting information:
The media shopping professional committee of the China Commercial Federation reported that the gold content of these "gold jewelry" was tested, and it also contained toxic elements such as cadmium, lead, nickel, and even some cadmium exceeded standards. 3000 times.
In the recent monitoring of the Media Purchasing Commission, more than 20 satellite TVs including Liaoning Satellite TV and Guangdong Satellite TV are publishing TV shopping advertisements for low -cost sales of gold jewelry. Under the notarization of the lawyer and notarization office, the Media Purchase Commission commissioned the National Jewelry Quality Supervision and Inspection Center to check the sampling of some gold jewelry in TV shopping, and to obtain the above -mentioned inspection results.
If according to the existing test report, TV shopping advertisements have constituted false publicity. The China Commercial Federation Media Purchasing Commission said that the products promoted by the advertisement are actually fake gold jewelry, toxic and harmful three -free products, and their behavior has been suspected of crime.
Reference materials Source: Baidu Encyclopedia-Thousand Foot Gold
Reference Data Source: People's Daily-Gold Jewelry Shopping Advertising Display Display Display Gold and Poisonous Poison N
From thousands of gold (purity 99.9%) to 10,000 -foot gold (99.99%), to today's high purity (purity 99.999%, purity 999999%), the gold industry moves all the way on the road of pursuing purity. Sales staff who sell gold will always recommend higher purity. The reason is "the more pure the better", but does Gao Chunjin really make sense to consumers? Is it worth buying more than a dozen or even tens of yuan per gram?
, as a precious metal, gold is refined from the ore of nature. It will be brought in in a series of process processes such as mining, processing, purity, and jewelry manufacturing. In terms of purity, the current process can only reach 99.9999%, which is already the Guinness World Record.
The gold of 999.99 is also called Qianchin. You have to be optimistic about whether there is that point in 5 9. 99.999 is also possible. It is true. If only 99999 is 99999, it may be false.
The gold of 999.99 is also called Qianchin. You have to be optimistic about whether there is that point in 5 9. 99.999 is also possible. It is true. If only 99999 is 99999, it may be false.
Gold cleaning method:
This to protect the gloss of the gold jewelry, you can apply a layer of nail polish thinly on it.
If on the surface, there are black silver films, 2 grams of salt, 7 grams of soda, 8 grams of bleaching powder, and 60 ml of clear water. After entering 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.
This rings of gemstones roll a piece of cotton with popsicles or match sticks. After wetting in the mixed fluid of flower dew and glycerin, scrub the gem and its frame, and then use a velvet cloth to lighten the ring. Do not scrape it with a kind of sharp objects.
The mixed synthetic cleaner with salt and vinegar to wipe the pure gold jewelry with it to make it new for a long time.
This to toothpaste or scrubbing with hot rice soup can also be restored.
This can be scrubded with ammonia water