Platinum distinction

Platinum, Platinum K scientific name, also known as white gold, it is a alloy, code-named WG (white gold). General foreign stamp used WG585 (14K), WG750 (18k) or only on behalf of the digital content, white gold has a good reflex, not dull. Platinum, also known as pure platinum, which is the symbol of the PT, silver gray, the proportion of 21.35, the melting point of 1700 ℃, Mohs hardness of 4-4.5 degrees, chemical stability, with the exception of aqua regia acid corrosion from the outside. Comparison of soft, pure platinum, palladium adding, rhodium, calcium metal to increase its hardness, the international stamp of platinum is the PT, on behalf of the purity of a very few, such as the PT900, PT950, PT990. K gold and platinum are different from the following: 1. Platinum is a natural pure white metal, K is the gold and platinum palladium, nickel, silver and zinc and other metal alloys, it is also known as K white gold. 2. Platinum rare, the annual output of less than gold, more valuable. 3. Platinum high-density, a platinum jewelry than a K platinum jewelry similar to the heavy 20%. 4. Platinum anti-acid and alkali corrosion, anti-oxidation, the chemical properties of K than the stability of platinum. 5. Platinum jewelry were there to fight "PT" and the fineness mark. If the "PT900" refers to the platinum jewelry products, the platinum content of 90%. K and the platinum mark, such as "18KWG", is contained in their gold as the main ingredient mark.
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