Methods and steps for identifying goldenness

Methods and steps for identifying goldenness

Gold has always been precious and valuable metals, and its purity is directly related to its value.Therefore, the purity of correctly identifying gold is essential for purchase, sales or investment.Here are several commonly used methods and steps to judge the purity of gold.

Appearance inspection

The appearance inspection method is the simplest and most common method.By observing the color, luster and surface of gold jewelry or items to the naked eye, preliminary judgment of its purity.Usually, the golden color of the golden color with closer to 24K (that is, as close to 100%of the purity) will be brighter and not easy to oxidize.

Density measurement

The density measurement method is one of the more accurate and scientific methods.The material density of the sample material is calculated by measured the material quality contained in the unit volume, thereby inferring its ingredients and material types.Because the density of different ingredients will change after mixing, other impurities ingredients in gold can be preliminarily estimated in this way.

X -ray fluorescent spectrometer detection method

X -ray fluorescent spectrometer detection method is a technical means with extensive and accurate reliability.The device can quickly and accurately determine the element content in the sample, and can identify tiny trace elements and adulteration, thereby providing a strong basis for judging authenticity of gold and false.

Flame test method

The flame test method is also called "thermal guidance test". Different substances use different substances to produce different colors of flashing phenomena to distinguish and judge.This test requires professional operations and comprehensively evaluated other experimental data to obtain more accurate results.

Chemical dissolution and tick analysis method

Chemical dissolution and titration analysis are mainly tested for mixed with other non -golden elements or alloys. Under certain conditions, the sample is dissolved and then gradually added to the reagent and determined the percentage of each element content according to the reaction results.

The above are several methods and steps that are commonly used to identify the purity of the goldenness. Please pay attention to safety protection measures when using, and choose the most effective and reliable place for your own needs and conditions.

"Title =" Identifying Golden purity ">