When the platinum diamond ring becomes the most favored thing in the wedding, it is followed by the identification of platinum diamond ring and platinum ring. Everyone wants what they wear on their hands to be genuine, just like love. The following Harbin wedding company teaches you the identification method. Look at the mark first. If the platinum ring jewelry has "Pt" or the words "Platnum" or "Plat" printed on it, it is platinum; If there is an "s" or "silver", it is silver. 2. The specific gravity of platinum iron is 2 1.4, and that of silver is 10.49. Compared with the same volume of materials, the weight of platinum is almost twice that of silver. Third, the appearance comparison method platinum ring is gray and hard; And silver is white, delicate and smooth, softer than platinum. 4. After high-temperature burning and cooling by fire method, the color of platinum ring remains unchanged, and it is still gray; Silver becomes moist red or black red. 5. Chemical identification method Grinding the platinum ring on the touchstone and dropping nitric acid and hydrochloric acid. If matter exists, it is true platinum; Grind silver on the touchstone, drop a few drops of nitric acid and rinse with water. If this substance disappears, it is silver. 6. Instrument hardness: the hardness of platinum ring is 4-4.5 degrees, which is harder than gold and silver. It is scratched with a knife or glass, but it will not be scratched by nails. Density measurement: The density of platinum ring is extremely high, and it feels heavy when weighed by hand. The density measured by static pressure method should be 2 1.43g/cm cubic fire: the melting point of platinum ring is as high as 1773. Homochromic acid test: Platinum ring is chemically stable and insoluble in ordinary acids. Scrape the platinum ring on the touchstone, drop hydrochloric acid, and try with hydrogen peroxide: put a little platinum ring powder in the hydrogen peroxide bottle, and hydrogen peroxide will immediately produce bubbles. The platinum ring after the reaction is intact and can still be used.