How to simply identify authenticity gold

How to simply identify authenticity gold

As a valuable precious metal, gold often becomes the goal of counterfeit products.Therefore, it is very important to simply identify authenticity gold for ordinary consumers.The following will introduce several simple and effective methods.

Visual inspection

First of all, you can preliminary judgment whether gold is true through appearance.The real gold has a unique luster and color, and it will sparkle in the sun, and it is not easy to oxidize and degenerate.In addition, you can also determine whether it is true gold with weight.

Thermal guidance test

In addition to the appearance inspection, it can also be identified by the thermal conductivity test.Because gold has a high heat guidance rate, it will melt quickly when placed on the surface of the object after holding an ice cubes; other materials will not occur.

Density

Another simple and effective method is to determine density.Pour a piece of pure water into a container and write down the water level; then put the object to be tested into the container, and record the water level change again.The composition can be learned according to the difference in the density of physical principles.

Chemical reagent test

The last method is to test using chemical reagents.For example, if you use nitric acid or hydrochloric acid on an object to be tested, if a bubble is produced, it may contain other materials; and pure gold will not react.

Summarize

The above introduces several methods of simply and effectively identifying authenticity gold: comprehensive considerations from the aspects of appearance, thermal guidance, density, and chemical reactions can be more accurate to determine its true and false nature.