Gold authenticity identification method greatly unveiled
Gold has always been a valuable metal that people love, but as more and more fake and shoddy products have appeared in the market, how to identify the authenticity of gold has become a highly concerned topic.This article will reveal some commonly used gold authenticity identification methods for you.
Appearance inspection
The appearance inspection method is the simplest and most commonly used method.First of all, pay attention to observe whether the gold surface is aerobic or signs of rust, the genuine gold will not occur.Secondly, it can be judged by comparative color and gloss. Gold with high purity is usually darker and has a good luster.
Chemical reagent
The chemical reagent method is to test the sample by using a specific chemical reagent to determine its ingredients.The more commonly used reagents include nitric acid and hydrochloric acid.By observing the reaction of the sample under different reagents, its content and composition can be inferred preliminary.
Density measurement
The density measurement method is one of the methods of using object density differences to distinguish between true and false items.Due to the different density of objects made of different purity and materials, the actual density of the sample can be obtained by weighing and measurement in the laboratory, and comparing with the standard value to determine its authenticity.
X -ray fluorescent analysis method
X -ray fluorescent analysis technology is widely used in the jewelry industry. It can accurately determine the content of various element in the material and help distinguish between different materials and make small differences between products.This technology requires professional equipment support, which can provide more accurate and reliable results in the laboratory environment.
Magnetic test
Magnetic testing is mainly aimed at other non -pure raw materials such as iron alloys that cause silver heads to become magnetic. Use powerful magnets to move above the silver head. If it is found, it may indicate that this piece may be mixed with other non -pure raw materials.At this time, you need to test it further.
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