Method 1 The first step of gold testing is observation to see if it has the characteristics of real gold: 1 In finding an official logo. In the sign, the purity of the gold (1-999 or 0.1-0.999) or the number of carats (10K, 14K, 18K, 22K or 24K). You can better observe with a magnifying glass. The signs on the goldenware of the age may be worn out. The fakes may also be marked because further verification is required. 2 The or not. This is important to check whether the goldenware is easy to wear (especially the edge) is fading. If the phenomenon of fading on the gold device and the fading part shows the color of other metals, then your golden device may only be gold -plated.
02 Method two Bite method 1
2 The wicked scar on the gold device. Theoretically, after the real gold is bitten, the bite marks will be left. The deeper the bite marks, the higher the purity of the golden gold. But we do not recommend this method because this may hurt the teeth. In addition, because lead is softer than gold, bite marks will be left on the gold -plated lead.
03 Methods 3 M magnet attraction Gold is not a magnetic metal, so if the magnet can attract gold wares, it is fake. However, it cannot be attracted by the magnet alone that it cannot prove that this golden device is true, because it may also be made from other non -magnetic metals.
04 Methods 4 The density testing method 1 is weighing. If you have no balance yourself, you can ask you to say it on your jewelry, usually free. The weight must be accurate to gram. 2 is filled with water in a small bottle. If on the wall of the small bottle, if there is a millimeter scale, it is best to help you complete the test. This water does not matter. As long as the golden device is put in, the water does not overflow, so don't pretend to be full. It should be carefully recorded with the height of the water level after putting in front of the golden device and after putting it in the gold ware. 3 The gold ware in the bottle. Record the changes in the water level before and after, and then calculate the value of the water volume, which is accurate to milliliters. 4 The calculation density with the following formulas. Gold density = total weight/water increase in water. If the density is close to 19 grams/ml, it is real gold or metal with density close to gold. The following is an example of calculating density: The gold device focuses on 38 grams, and the volume of water increase is 2 ml. According to the density obtained by the formula, it is 19 grams/ml, this result is very close to the density of real gold. The golden density of different purity is also different 14k gold density equivalent to 12.9-14.6 grams/ml yellow 18k gold density is equivalent to 15.2-15.9 grams/ml white 18K gold density It is equivalent to 14.7-16.9 grams/ml 22k gold density is equivalent to 17.7-17.8 grams/ml
05 Method 5 A good way to expose Kim Original, but your gold ware may be scratched. 1 In finding an unbuused porcelain plate. If not, you can buy a piece of porcelain at home in the home improvement store. 2 Culed porcelain plates with gold wares. If a black scratch is left on the porcelain plate, your gold ware is not true gold. If the scratch is golden, it is true gold.
06 Methods 6 The term nitric acid testing method The term Acid Test comes from here. Nitric acid test is also a good way to distinguish the authenticity of gold. However, because the nitric acid used in the test is not easy to obtain, and it is more dangerous to do such a test at home, it is recommended that you give it to the jewelry dealer to do it. 1 The gold ware is placed in a small stainless steel container. 2 The drops of nitric acid on the golden device and observe the reaction. If the sour is green, then this golden device is either made of ordinary metals or gold -plated. If it is golden, it is gold -plated copper. Ifly, it is gold -plated silver. If there is no reaction, then this golden device is true.
1, check the official logo of gold. Generally, 999 or 990, or 10K, 18K, 22K, 24K. It is not considered lower than 10K, because the content of gold is too low. If you observe with a magnifying glass, you will see more carefully.
2, ancient gold jewelry will not have obvious official purity logos.
3, of course, there will also be official signs of counterfeit gold jewelry, so further inspections need to be performed.
4, find obvious discoloration. Check the wear area of the golden surface, which is usually on the edge of the golden products to check the color change there. If the golden color disappears and becomes another color, then this product is just a gold -plated.
. The bromine chemistry test
1. Put the golden product into the alcohol solution for a small meeting.
2. Put a piece of filter paper into the sperm solution.
3. At this time, the filter paper becomes gray -purple.
4, drops 4 drops of bromo -A reagent to the filter paper, if the filter paper becomes white, then this gold product is real gold.
The test time takes 20 minutes.
. Magnetic test
This is a simple test, but it is not a sufficient proof to prove whether it is true gold. You can find a powerful magnet for testing.
Gold is not a magnetic metal. If your product is attracted by magnets, it is enough to prove that this product is not gold. But you can't prove that it is gold because your product does not respond to magnets, because there are many non -magnetic metals.
. Disted test
The density test only has a very small metal density exceeding gold.
The density of pure 24K gold is about 19.3 grams/ml, which is much higher than other metals. The density test method is enough to prove that your product is gold. The higher the density, the higher the purity of gold. Make sure your product has no additional gem.
1. If you do not have equipment in this area, jewelry shops can usually do density testing for you.
2, you can put your golden products in the container full of water, and then test the volume of overflowing water, and then remove the weight of your gold product, which is the density of your gold product. Keep in mind that different gold purity has different grams/ml ratio: 14k- 12.9 ~ 14.6 grams/ml 18k gold-15.2 to 15.9 grams/ml 18k platinum-14.7 ~ 16.9 grams/ml 22k-17.7%to 17.8 grams to 17.8 grams /Ml.
. The test method of ceramic scratch
1. Using unlawish ceramics. If you don't have this, you can buy it from a ceramic shop.
2. Cover your gold products with ceramics. If it is a black scratch, it means that your product is not gold. If it is a golden scratch, it proves that your product is gold.
Pay content for time limit to check for freenAnswer golden identification 1. Look at the golden color and bright color, not easy to oxidize, and not rust. The folks have circulated "Seven Qing Eight Yellow Nine Five -Year Chi" and "Yellow Lands Red Plaid to half gold". The red yellow golden color is above 95%, the positive yellow color is about 80%, the blue yellow color is about 70%, and the yellow leucorrhea red is only about 50%. Compared with copper and iron, copper ... 2. The density of gold is very strong, and it feels heavy in the hand, while aluminum, copper, silver and other metals have no feeling. 3. The pull is mainly used to identify the softness of gold, especially the gold with high purity, which is better. The gold or low purity of gold is low and low, which is not easy to bend.n4) After listening to the golden gold, the voice is dull and thick. The higher the purity, the more dull the sound. 5) I often see this method in TV series to distinguish gold, because the hardness of the gold is very low. You can use the teeth to leave the tooth print on the surface, while the copper or other alloys can be bitten. Jewelry. 6) The burial saying says: "Real gold is not afraid of fire refining." The temperature of ordinary fires is about 800 ° C, and gold can not melt, no oxidation, and unchanged color at 1040 ° C. 7) Most of the acidic metals will have a chemical reaction with the three major acidic acids, while gold is only dissolved in the king water, and does not have a chemical reaction with the general strong acid.
Small ways to distinguish the authenticity of gold, just wait for five minutes, is true or false, and immediately know
n00:00 / 00: 5270% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description
00: 53 The official mall of Hongmao Medicine Wine The simple method of identifying golden and false Tools/raw materials Methods/steps 1/8 Read step by step to see the color. According to the different gloss and color of gold, you can generally distinguish pure gold, K gold, real gold, fake gold. The old -fashioned old -fashioned "Qiqing Eight Yellow Nine Five Red and yellow leucorrhea gray pairs of gold" circulating is the purity of the gold.
2/8 Domestic gold jewelry must be used to be killed in accordance with regulations. It indicates that 24K represents a purity of more than 99.6%, indicating that 18K means that the purity is above 75%.
3/8 High -colored gold can leave traces with large head needles or nails. More than 97%of the gold jewelry, after two or three times, wrinkles appeared at the bend, also called fish scales; about 95%of gold jewelry, it feels hard when bending, and the fish scales are not obvious; The jewelry is very hard when the bending is bent, and there is no fish scale pattern; the gold jewelry containing more impurities, the bend is twice or three times to break; 4/8 listening to the sound. The real gold with more than 99%of the real gold is thrown on the hard ground, and it will make a sound, 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. The proportion of gold is 19.3g/cm3, which has a large relationship with the proportion. When the proportion is close to 19.3, the higher the pure gold. Looking at whether it is commensurate with the size of the size, the shape is large and lighter may be adulterated. But generally in the hands, if you feel slightly sinking, you can perceive the real gold jewelry, which shows that the gold body is small and heavy. You should be vigilant for the stupid and light jewelry, and carefully discern whether for fakes or semi -fakes. 6/8 The trial soft and hard. The higher the color of the gold jewelry, the softer, and the more elasticity. The real gold will have light marks with teeth or needle. Low -colored steel is hard; those with heavy mixes are elastic, crispy and easy to break. The pure gold is soft, and it is generally not used to make embedded jewelry. Therefore, all inlaid gold jewelry claims to be 24K and there must be fraud. 7/8 Find an unsightly porcelain plate. If not, you can buy a porcelain at home in the home improvement store. Scrape the porcelain plate with a golden device. If the black scratch is left on the porcelain plate, your gold ware is not a real gold. If the scratch is golden, it is true gold. This can make the fake golden shape reveal, but your gold ware may be scratched. 8/8 Put the goldware into a small stainless steel container, drop a drop of nitric acid on the goldware, and observe the reaction. If the acid is green, then this golden device is either made of ordinary metals or gold plated. If it is golden, it is gold -plated copper. If it presents milk, it is gold -plated silver. If there is no reaction, then this golden device is true. This nitric acid test is a good way to distinguish the authenticity of gold, but because nitric acid is not easy to obtain, and it is also dangerous to operate at home, it is recommended that you give it to the jewelry dealer to do it.
Method 1
The first step of gold testing is observation to see if it has the characteristics of real gold:
1
In finding an official logo. In the sign, the purity of the gold (1-999 or 0.1-0.999) or the number of carats (10K, 14K, 18K, 22K or 24K). You can better observe with a magnifying glass.
The signs on the goldenware of the age may be worn out.
The fakes may also be marked because further verification is required.
2
The or not. This is important to check whether the goldenware is easy to wear (especially the edge) is fading.
If the phenomenon of fading on the gold device and the fading part shows the color of other metals, then your golden device may only be gold -plated.
02
Method two
Bite method
1
2
The wicked scar on the gold device. Theoretically, after the real gold is bitten, the bite marks will be left. The deeper the bite marks, the higher the purity of the golden gold.
But we do not recommend this method because this may hurt the teeth. In addition, because lead is softer than gold, bite marks will be left on the gold -plated lead.
03
Methods 3
M magnet attraction
Gold is not a magnetic metal, so if the magnet can attract gold wares, it is fake. However, it cannot be attracted by the magnet alone that it cannot prove that this golden device is true, because it may also be made from other non -magnetic metals.
04
Methods 4
The density testing method
1
is weighing. If you have no balance yourself, you can ask you to say it on your jewelry, usually free. The weight must be accurate to gram.
2
is filled with water in a small bottle.
If on the wall of the small bottle, if there is a millimeter scale, it is best to help you complete the test.
This water does not matter. As long as the golden device is put in, the water does not overflow, so don't pretend to be full.
It should be carefully recorded with the height of the water level after putting in front of the golden device and after putting it in the gold ware.
3
The gold ware in the bottle. Record the changes in the water level before and after, and then calculate the value of the water volume, which is accurate to milliliters.
4
The calculation density with the following formulas. Gold density = total weight/water increase in water. If the density is close to 19 grams/ml, it is real gold or metal with density close to gold. The following is an example of calculating density:
The gold device focuses on 38 grams, and the volume of water increase is 2 ml. According to the density obtained by the formula, it is 19 grams/ml, this result is very close to the density of real gold.
The golden density of different purity is also different
14k gold density equivalent to 12.9-14.6 grams/ml
yellow 18k gold density is equivalent to 15.2-15.9 grams/ml
white 18K gold density It is equivalent to 14.7-16.9 grams/ml
22k gold density is equivalent to 17.7-17.8 grams/ml
05
Method 5
A good way to expose Kim Original, but your gold ware may be scratched.
1
In finding an unbuused porcelain plate. If not, you can buy a piece of porcelain at home in the home improvement store.
2
Culed porcelain plates with gold wares. If a black scratch is left on the porcelain plate, your gold ware is not true gold. If the scratch is golden, it is true gold.
06
Methods 6
The term nitric acid testing method
The term Acid Test comes from here. Nitric acid test is also a good way to distinguish the authenticity of gold. However, because the nitric acid used in the test is not easy to obtain, and it is more dangerous to do such a test at home, it is recommended that you give it to the jewelry dealer to do it.
1
The gold ware is placed in a small stainless steel container.
2
The drops of nitric acid on the golden device and observe the reaction.
If the sour is green, then this golden device is either made of ordinary metals or gold -plated. If it is golden, it is gold -plated copper.
Ifly, it is gold -plated silver.
If there is no reaction, then this golden device is true.
First, check
1, check the official logo of gold. Generally, 999 or 990, or 10K, 18K, 22K, 24K. It is not considered lower than 10K, because the content of gold is too low. If you observe with a magnifying glass, you will see more carefully.
2, ancient gold jewelry will not have obvious official purity logos.
3, of course, there will also be official signs of counterfeit gold jewelry, so further inspections need to be performed.
4, find obvious discoloration. Check the wear area of the golden surface, which is usually on the edge of the golden products to check the color change there. If the golden color disappears and becomes another color, then this product is just a gold -plated.
. The bromine chemistry test
1. Put the golden product into the alcohol solution for a small meeting.
2. Put a piece of filter paper into the sperm solution.
3. At this time, the filter paper becomes gray -purple.
4, drops 4 drops of bromo -A reagent to the filter paper, if the filter paper becomes white, then this gold product is real gold.
The test time takes 20 minutes.
. Magnetic test
This is a simple test, but it is not a sufficient proof to prove whether it is true gold. You can find a powerful magnet for testing.
Gold is not a magnetic metal. If your product is attracted by magnets, it is enough to prove that this product is not gold. But you can't prove that it is gold because your product does not respond to magnets, because there are many non -magnetic metals.
. Disted test
The density test only has a very small metal density exceeding gold.
The density of pure 24K gold is about 19.3 grams/ml, which is much higher than other metals. The density test method is enough to prove that your product is gold. The higher the density, the higher the purity of gold. Make sure your product has no additional gem.
1. If you do not have equipment in this area, jewelry shops can usually do density testing for you.
2, you can put your golden products in the container full of water, and then test the volume of overflowing water, and then remove the weight of your gold product, which is the density of your gold product. Keep in mind that different gold purity has different grams/ml ratio: 14k- 12.9 ~ 14.6 grams/ml 18k gold-15.2 to 15.9 grams/ml 18k platinum-14.7 ~ 16.9 grams/ml 22k-17.7%to 17.8 grams to 17.8 grams /Ml.
. The test method of ceramic scratch
1. Using unlawish ceramics. If you don't have this, you can buy it from a ceramic shop.
2. Cover your gold products with ceramics. If it is a black scratch, it means that your product is not gold. If it is a golden scratch, it proves that your product is gold.
Pay content for time limit to check for freenAnswer golden identification 1. Look at the golden color and bright color, not easy to oxidize, and not rust. The folks have circulated "Seven Qing Eight Yellow Nine Five -Year Chi" and "Yellow Lands Red Plaid to half gold". The red yellow golden color is above 95%, the positive yellow color is about 80%, the blue yellow color is about 70%, and the yellow leucorrhea red is only about 50%. Compared with copper and iron, copper ... 2. The density of gold is very strong, and it feels heavy in the hand, while aluminum, copper, silver and other metals have no feeling. 3. The pull is mainly used to identify the softness of gold, especially the gold with high purity, which is better. The gold or low purity of gold is low and low, which is not easy to bend.n4) After listening to the golden gold, the voice is dull and thick. The higher the purity, the more dull the sound. 5) I often see this method in TV series to distinguish gold, because the hardness of the gold is very low. You can use the teeth to leave the tooth print on the surface, while the copper or other alloys can be bitten. Jewelry. 6) The burial saying says: "Real gold is not afraid of fire refining." The temperature of ordinary fires is about 800 ° C, and gold can not melt, no oxidation, and unchanged color at 1040 ° C. 7) Most of the acidic metals will have a chemical reaction with the three major acidic acids, while gold is only dissolved in the king water, and does not have a chemical reaction with the general strong acid.
Small ways to distinguish the authenticity of gold, just wait for five minutes, is true or false, and immediately know
n00:00 / 00: 5270% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description
00: 53
The official mall of Hongmao Medicine Wine
The simple method of identifying golden and false
Tools/raw materials
Methods/steps
1/8 Read step by step
to see the color. According to the different gloss and color of gold, you can generally distinguish pure gold, K gold, real gold, fake gold. The old -fashioned old -fashioned "Qiqing Eight Yellow Nine Five Red and yellow leucorrhea gray pairs of gold" circulating is the purity of the gold.
2/8
Domestic gold jewelry must be used to be killed in accordance with regulations. It indicates that 24K represents a purity of more than 99.6%, indicating that 18K means that the purity is above 75%.
3/8
High -colored gold can leave traces with large head needles or nails. More than 97%of the gold jewelry, after two or three times, wrinkles appeared at the bend, also called fish scales; about 95%of gold jewelry, it feels hard when bending, and the fish scales are not obvious; The jewelry is very hard when the bending is bent, and there is no fish scale pattern; the gold jewelry containing more impurities, the bend is twice or three times to break;
4/8
listening to the sound. The real gold with more than 99%of the real gold is thrown on the hard ground, and it will make a sound, 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. The proportion of gold is 19.3g/cm3, which has a large relationship with the proportion. When the proportion is close to 19.3, the higher the pure gold. Looking at whether it is commensurate with the size of the size, the shape is large and lighter may be adulterated. But generally in the hands, if you feel slightly sinking, you can perceive the real gold jewelry, which shows that the gold body is small and heavy. You should be vigilant for the stupid and light jewelry, and carefully discern whether for fakes or semi -fakes.
6/8
The trial soft and hard. The higher the color of the gold jewelry, the softer, and the more elasticity. The real gold will have light marks with teeth or needle. Low -colored steel is hard; those with heavy mixes are elastic, crispy and easy to break. The pure gold is soft, and it is generally not used to make embedded jewelry. Therefore, all inlaid gold jewelry claims to be 24K and there must be fraud.
7/8
Find an unsightly porcelain plate. If not, you can buy a porcelain at home in the home improvement store. Scrape the porcelain plate with a golden device. If the black scratch is left on the porcelain plate, your gold ware is not a real gold. If the scratch is golden, it is true gold.
This can make the fake golden shape reveal, but your gold ware may be scratched.
8/8
Put the goldware into a small stainless steel container, drop a drop of nitric acid on the goldware, and observe the reaction. If the acid is green, then this golden device is either made of ordinary metals or gold plated. If it is golden, it is gold -plated copper. If it presents milk, it is gold -plated silver. If there is no reaction, then this golden device is true.
This nitric acid test is a good way to distinguish the authenticity of gold, but because nitric acid is not easy to obtain, and it is also dangerous to operate at home, it is recommended that you give it to the jewelry dealer to do it.