Newly purification gold

Are newly separated purification gold dust, silt and other impurities by the strong currents of water to remove sand and alluvial minutes, and minutes remaining gold in place because of the high density of gold has been used to dissolve gold mercury without sand and silt. Then finds gold from mercury Ptkotair latter. It also draws upon a gold mining copper and silver.There are chemical methods to extract gold, which emphasizes the way cyanide, or dissolve its alloys silver in sulphuric acid status, and are purifying gold nitric acid first, and then the electric analysis. Uses gold We have known gold emerged value since immemorial ages metal easily formed more than any other metal. In addition to the easy availability of gold in its image clean. The beauty of its gold, and corrosion resistance of metals has made him distinguished in the arts and crafts of different since ancient times. Given the relative scarcity, gold was used as currency, the basis for international financial transactions. The unit used in weight gold Alounsh the equivalent of 31.1 kilograms. One of the most important uses of gold now that uses a reserve currency. For several centuries ago, the gold and silver used Kaamlten used directly.During the nineteenth century, playing a new role as gold is the only basis for the currencies of most countries in the world where securities can be converted into gold. Since the seventies of the twentieth century, the gold is sold and bought in the market at prices UNSTEADY to a large extent, the relationship between gold reserves and the value of currencies indirect relationship to a considerable extent. It has become an increasing demand for gold in the very processes of industrialization. Because gold a good conductor of electricity and of high resistance to corrosion and erosion, it is of great importance in the manufacture of electrical circuits minute. If Azept small quantities of gold and placed in glass or plastic sheeting, they prevent the passage of infrared and serve as a protective heat effectively. Because gold is consistency chemical, it is used in machinery operating in the atmosphere leads to rust, as the metal surfaces prone to corrosion or erosion due to liquid or fumes. Gold is also used also in the form of paint chips in gold and gold writing. One derivatives used in gold glass color red. It uses potassium cyanide added to the gold in the gold paint, which are electrically. As well as gold used in medicine for proven compatibility with the body organs of living. It is used in the dental, and pharmaceutical packaging. As used isotopes of gold in biological research in the treatment of cancer. It uses the largest amount of gold produced in currency and jewelry. To meet these ends, the other metals, gold is mixing up the firmness required. And reflects the gold found in this jumble karats.