How to maintain physical gold collection learned

by Yueshen Yueshen wholesale jewelry In recent years, New Year gold bars become popular, all kinds of physical gold also sell very prosperous, the home of the hidden gold silver more and more people. However, if keeping to improper, high purity gold bars, gold and gold jewelry will appear the problem of color. This is not necessarily all quality problem, but with your collection, maintenance method about.
High in cernet gold investment BBS on a hangzhou net friend to send a post, he from the bank to buy gold bars, cernet high five ounces and 10 ounces of gold bars are many spots, the purple bronze, going to the diffusion. Although the bank staff told him don't open the packing will not affect repurchase, but he still doubt that gold bars quality to have a problem.
People think of the nature of the gold is stable, it is very afflictive corrosion. Why high pure gold bars will be changed? Hangzhou quality school gold jewelry quality inspection center experts say, although like thousand pure gold purity has reached 99.9%, but how many will also exist in gold silver, copper, iron, zinc and other metal components. These metal oxide or and other chemicals produce chemical reaction, will produce a certain compound precipitation, it looked as if the gold color.
Gold jewelry quality test center introduction, gold bars, gold, gold jewelry color case, they often encounter. Like a gold bar appear rusty spot, gold white, black, etc all have. Black is a metal bar contains copper and silver biochemistry reaction to create copper sulfide, chloride by silver, and white is gold and mercury (mercury) caused by steam after contact. Once consumers to wear gold jewelry go to hospital, he accidentally broken temperature agent, the result after contact ornament with mercury turned white.
Now home physical gold deposit are more and more people. Gold jewelry expert proposal, should put the gold in a dark, dry place, away from the kitchen, toilet later have pollution room. In addition, although the hangzhou weather is wet, but store gold place need not deliberately moistureproof, because moistureproof agent is volatile, and gold contact to produce chemical reaction. Some women used to gold jewelry and cosmetics together, cosmetics volatile chemicals can also lead to gold jewelry color.
Expert proposal, usually contact metal bar when had better wear gloves, because his sweat easily lead to gold color. However, gold products really changed color also need not worry, get gold jewelry store with ultrasonic, professional detergent cleaning can be removed.
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Created on Dec 31st 1969 18:00. Viewed 0 times.

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