Gold appraisal method Disposal: Experts share practical skills
As a precious precious metal, gold is crucial.There are various forms of gold in the market, including different purity and different crafts.This article will share some practical golden identification skills from the perspective of experts to help readers better understand and identify authentic gold.
Visual inspection
Appearance inspection is the most basic and most intuitive way of appraisal.First of all, pay attention to the color and luster of gold. The real gold should show bright and uniform colors and have a unique gloss.In addition, you can use scratch testing to preliminarily determine whether it is true gold.Use a high -hardness object to gently draw it in an unique place. If you leave obvious marks, it may be counterfeit.
Chemical reagent detection
Chemical reagent detection is a common and high accuracy method.By using hydrochloric acid or other special reagents to distinguish authenticity with reactions to be tested.It is truly highly purified and contained in sufficient amount of golden ingredients to produce special changes or reactions. When performing such testing, you need to be careful to avoid damage to the sample.
X -ray fluorescence analysis
X -ray fluorescent analysis is a precise and highly accurate high -end testing method. It can use X You Shaoyou to have special analysis samples to divide and content.This method can accurately determine the content of black, and can enter the fast test without damage to the sample.X Youhuan Entry Analysis is a common technical means in the Black Store and Laboratory in many sounds.
density measurement method
The density test is another outer outer species.In terms of numbers, black does not contain more other material (such as alloy or silver)? The true blackness is lower.The space occupied by test samples in the test sample can quickly preliminarily judge its ingredients
Summary:
The above introduces a few common and effective use? Black -free iodine different things, one of you to find you black shops to you, many of you can find ways to find a way to black shops and we have improved your ability to your own ability after reading it.Even if you are difficult, there is no problem, I hope you can help you even? Even if I believe that each of us will accept new knowledge after so many tests, so that we must know the goal direction before we travel.
