5 thoughts on “Why does gold weigh less after being burned?”
Wilbert
One of the important purposes of fire is to test whether the gold jewelry is really sufficient gold, because gold plating cannot be distinguished from the appearance. Although the spectrometer has been used for detection, and accurately knows the gold content of the gold jewelry, why do you still have to conduct destructive detection of gold ornaments? Apartially indicates that the recycling items will be returned to the factory to re -purify and smelted instead of secondary sales! ! R n The ancient saying that real gold is not afraid of fire, but when you really encounter, many people still doubt whether the weight of the gold ornament will be reduced after the high temperature fire is burned. Very stable metal elements, it does not reduce quality due to high temperature firing. On the contrary, the gold jewelry that has been worn for a long time will inevitably attach some dust -sweaty cosmetics residues. After the fire is burned, you can remove these impurities on the surface.
. If there is a platform saying that the gold jewelry is fused, it is one gram less than two grams, it does not exist! Unless the gold decoration is too low in gold or the surface is too dirty, it is impossible for a gram to be heavy. Reduce so much. The scope of the state stipulates that the weight error of the detection results after melting is between ± 0 and 002.
Because it will have a certain softening ability after being burned. Another one is to let the fire pile. Gastrointestinal will definitely be reduced. If this is less, it may end up into a small piece.
One of the important purposes of fire is to test whether the gold jewelry is really sufficient gold, because gold plating cannot be distinguished from the appearance. Although the spectrometer has been used for detection, and accurately knows the gold content of the gold jewelry, why do you still have to conduct destructive detection of gold ornaments? Apartially indicates that the recycling items will be returned to the factory to re -purify and smelted instead of secondary sales! ! R n
The ancient saying that real gold is not afraid of fire, but when you really encounter, many people still doubt whether the weight of the gold ornament will be reduced after the high temperature fire is burned. Very stable metal elements, it does not reduce quality due to high temperature firing. On the contrary, the gold jewelry that has been worn for a long time will inevitably attach some dust -sweaty cosmetics residues. After the fire is burned, you can remove these impurities on the surface.
. If there is a platform saying that the gold jewelry is fused, it is one gram less than two grams, it does not exist! Unless the gold decoration is too low in gold or the surface is too dirty, it is impossible for a gram to be heavy. Reduce so much. The scope of the state stipulates that the weight error of the detection results after melting is between ± 0 and 002.
Because it will have a certain softening ability after being burned. Another one is to let the fire pile. Gastrointestinal will definitely be reduced. If this is less, it may end up into a small piece.
Generally, fire burns will not be reduced or discolored. Thank you, if the jewelry processing is melted, and it will be formed, it will be consumed.
Others that are not gold react with oxygen at high temperature and oxidation!
Oxidation