Platinum is a noble precious metal. Products from it are greatly popular. It is important to understand what it stands out among other metals and by what parameters will exceed them.
How to distinguish from silver?
The cost of silver is much lower in comparison with platinum, for this reason unscrupulous manufacturers are issued for expensive noble metal silver products.
Attempting to sell a massive chain on a democratic value indicates the likelihood of deception.
Identify platinum and distinguish it from silver metal by several parameters, such as:
- Chemical influence resistance+
- Resistance to heating.
In appearance, these metals are similar, but if you carefully look at, you can see the difference in shades. Silver has a gray sweat, and the platinum is brighter and stronger.
In the presence of weighing metal in the house. When determining the mass of products, the error must be minimal. Compare the weight of silver and platinum jewelry (their dimensions must be approximately equal). Platinum is harder, so the difference in mass with a similar silver sample will be significant.
It is impossible to exclude the likelihood that the decoration is made of silver alloy and other heavy metal, for example, rhodium, but it is minimal. Such substances are also quite expensive, they can rarely meet in nature, and in the production of fake products, such materials do not apply.
Platinum is classified as solid metals, and silver decorations change the shape even with a small external effect. If the surface of the product is deformed after the force was applied to it, the likelihood that it was not made out of platinum, high.
Platinum decorations are more dense than silver. If you place the sample into a container with water and measure the amount of fluid that it displaces, and then divide on the resulting value of the product, the figure should be about 21.45. Such a density has pure platinum metal devoid of impurities.
It will not hurt to try platinum and silver decorations tooth. On platinum will not be an imprint, and on silver it will. This is associated with a higher platinum metal density.
Another test for the definition of the difference is carried out with the help of a swollen egg. To him alternately apply decorations from different metals. Silver under the influence of hydrogen sulfide turns around, and with platinum nothing will happen.
Platinum is peculiar to the refill, it can be without fear of keeping over the stove. If contact with fire is short, she will not even have time to warm up. About such a decoration will not be born. Silver heating happens quickly, so the risk of getting a burn high.
Differences from gold and other metals
Gold belongs to the category of soft metals. In contrast, platinum is much stronger and denser, steady to wear. And she weighs more. Gold is easier than deformation, platinum products are more practical. Platinum lighter, gold bars and decorations have a gray or gray-yellow.
To give products from white gold characteristic whiteness and brilliance, additional strength, they are often covered with a rhodium layer of silver-white shade.
Its properties are as close as possible to platinum properties.
Rhodium looks attractive and does not fade, does not change the color over time. It is more resistant to scratches than soft gold. The only drawback of this coverage is associated with its abrasion, which leads to the yellowing of the product. Similar spraying is recommended to update once a few years at the jeweler. Platinum does not require additional processing, She and so has a silver and white sweat.
Another difference is in price. Previously, platinum products cost cheaper silver. Today, decoration from this metal will cost much more than an analogue of gold.
Platinum from other metals, including Palladium, distinguishes pure white shine. It is characterized by refractory and immune to high temperatures.
If you bring a platinum product to the open fire, nothing will change, the color will remain the same, even heavy heating will not happen.
How to determine authenticity at home?
For clean platinum, there are sometimes various alloys containing it in a minimum quantity, so each buyer should know how to prevent an error when choosing a platinum product and recognize the fake. There are a number of techniques that allow you to determine the authenticity of platinum. If there is a doubt, it is worth conducting a test using special compositions.
Check how the sample reacts to iodine. If the color of the drug drops after applying to the surface will remain unchanged (dark), it means that the sample is high. And than rich the kel, the higher.
“Tsar’s vodka” is used to authenticate. Concentrated hydrochloric acid is connected with nitric in proportion 3: 1. Such a mixture contributes to the dissolution of metals, but this does not apply to platinum. Lowered platinum decoration in solution will not change its type.
Fake “Tsar’s Vodka” solurate with ease. But the solution needs to be used in cold form, hot solvent and platinum.
Authentication is performed using liquid ammonia. Contacting with metals, it provokes the blackening of their surface, this does not happen with the platinum.
It is stable and to magnetic exposure. If the magnet attracted the product, it means that the amount in it of the precious metal is low or no at all. Most manufacturers of jewelry are equipped with their locks, the design of which provides a steel spring. Such a mechanism is in chains and bracelets. If it is presented, the magnet attracts an exceptionally lock.
At home, you can perform another safe test aimed at authentication of the product. Pour water with salt dissolved in it in it and place the sample checked into the solution. Connect to a minus the usual battery of a tin can, and to the plus – the product is tested.
In the case of a fake in the solution, a precipitate is formed, which causes its turbidity. If the product is really made of precious metal, the solution will not lose its transparency, but the chlorine will begin to synthesize. About his appearance indicates a sharp smell.
Listed methods do not guarantee 100% result, it is desirable to apply as an addition to professional advice. To verify the authenticity of the metal, it is better to use special equipment that sues jewelers.
More information about platinum and determining its authenticity, see the following video.