The characteristics and differences between platinum necklace and silver

Platinum and silver jewelry are very popular in the market and are loved by many women. However, platinum and silver are very similar at first glance. It is difficult for an inexperienced person to distinguish between the two, but there is a difference between them. Let's talk about the characteristics and differences between platinum necklaces and silver. Platinum and silver jewelry are very popular in the market and are loved by many women. However, platinum and silver are very similar at first glance. It is difficult for an inexperienced person to distinguish between the two, but there is a difference between them. Let's talk about the characteristics and differences between platinum necklaces and silver. 1. Weighing: The specific gravity of platinum is 21.4, and the specific gravity of silver is 10.49. The same volume of platinum is twice as heavy as silver. Generally, you can distinguish the two by weighing them by hand. 2. Comparison of appearance and hardness: Platinum will be slightly grayish bright white with the naked eye, and the texture is hard. It is difficult to scratch with a pin. Its Mohs hardness is 4.3, while the color of silver is white and the texture is smooth and delicate. , It will turn into off-white or jet black upon light oxidation. Its Mohs hardness is 2.7, which is much softer than platinum. 3. Firing method: Platinum can resist high temperature oxidation, and its melting point is as high as 1770 degrees. It will not melt when it is fired at high temperature (gasoline). After cooling, the color will not change or there will be traces of quenching. Silver has a low melting point. After being burned at a high temperature, its color is red, black, red or jet black depending on the amount of silver. 4. Chemical method: Platinum has extremely stable chemical properties and is resistant to corrosion. It will not react to any acid or alkali, while silver is not resistant to strong acid corrosion. Platinum necklaces and silver have the characteristics and differences. Not all people like platinum, and not all people like silver. According to personal preferences and characteristics, combined with the actual situation to buy. Mass consumption should not only focus on quality but also on quality. Previous post: Can marriage leave be postponed during legal holidays? Next post: What kind of pendant should go with a platinum necklace?