wholesale 24k gold jewelry Can the golden fire be dissolved?

wholesaler in african jewelry Real gold is not afraid of fire, this sentence is fine. In gold shops and pawns, burning with fire is one of the most commonly used basic methods for inspection. So what will happen to the lighter, can you test gold?

The melting point of the gold is 1063 degrees Celsius. When the flame with a temperature of 1000 degrees Celsius is sprayed towards gold, the real gold color will be brighter and brighter; The low gold color will turn black or turn into other colors, or even melt quickly. However, burning with fire is just a relatively effective method of detection, and the flame temperature of the gas stove and lighter used daily, the flame temperature is only a few hundred degrees Celsius.

So how to distinguish the authenticity of gold

1, see the color. According to the different gloss and color of gold, you can generally distinguish pure gold, K gold, real gold, fake gold. That is, gold is better yellow (yellow -red), and the color is more than 95%; the positive yellow color is about 80%; the blue and yellow color is about 70%; the yellow color is slightly gray and the color is about 50%.

2, weight. Gold is about double the same volume of silver, lead and tin. True gold feels down in his hand.

3, listen to the sound. When a high -colored gold necklace is hit or throwing it hard, the dull and low voice of "dwelling, dwelling" is made, and there is no rhyme or elasticity. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.

4, folding hardness. High -colored gold can leave traces with large head needles or nails. Gold jewelry containing more impurities, bend twice or three times to break; if it is made for raw gold, the curve is broken, and the section has obvious sand granules.

5, burned with fire. You can buy a simple fire in the outdoor products store. After the fire is burned, the gold jewelry restores the original color. It is real gold. But burning may damage the gold ornaments.

buy wholesale jewelry to sell The gold we said refers to pure gold. The burning of pure gold will not turn black, such as 24K gold and 999 thousand gold; The burning of fire will change color, usually black.

It will do an experiment below to let the experimental demonstrate the conclusion of the little golden craftsman.

has prepared four jewelry, and it is almost the same in color. Select three pure gold jewelry to directly burn high -temperature muskets on the spot to see if it will change?

Is see not, pure gold becomes yellow under the action of high temperature, and after cooling, it will restore the original color after a little cooling, without any miscellaneous colors.

In the effect of the non -pure gold under the fire.

Under the influence of burning in the fire, it was still Huang Tongtong at first, but when it was cooled, the whole body turned black.

Masted these four gold jewelry that had been burned by the fire and could see very clear changes. Pure gold has almost no change after the high temperature fire, but the non -pure gold jewelry turns black, and it can be seen at a glance.

The melting point of gold is not high, but its chemical stability is very good and it is not easy to react with other substances. Even in the melting state, it will not be oxidized and discolored, and the golden glitter is still glitter after cooling. This is why the pure gold is burned by fire and will not change color.

It if gold is melted by fire, will it volatilize?

The answer is!

The mainly look at the temperature reached. The boiling point of the gold is 2808 ° C. When heated to 1064.43 ° C, the gold melted into a liquid, heated to 2808 ° C, and started to evaporate. The melting in the process of making gold jewelry is generally very small, which can be ignored directly without any effect on weight.

Is the fake gold that was burned?

This can not be judged by the burning experiment. Fire can only be judged whether it is pure gold. Pure gold will not be colored by fire. It is fake gold or other content of gold, so I do n’t know.

The gold jewelry purchased or customized in regular brands will be marked with gold content, and they are all tested by institutions. You can buy it with confidence.

Thismith has already revealed the answer to everyone with experiments, so don't be curious about doing experiments. In particular, do not take the thin jewelry of the necklace, do not try it easily, because the temperature is slightly controlled, and your jewelry is deformation. Also pay attention to whether it is a non -pure gold jewelry. If it is not pure gold, the fire will definitely turn black, it will be worthless.

jewelry wholesale dealers Really gold will not turn black with fire. Gold (GOLD) is a single form of chemical element gold (chemical element symbol AU). It is a soft, golden, corrosive precious metal. As a precious metal, gold has good physical characteristics, has high chemical stability, is not easy to chemically react with other substances, and do not have to worry about oxidation and discoloration. Even in the melting state, it will not be oxidized and discolored. As the saying goes, "real gold is not afraid of fire", it is said that after the gold is burned, it is still glittering and will not change color.

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