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Pickling. The bracelet has a very unnatural surface color and luster after being pickled, and its internal structure will become loose, and there is no feeling of pressing the hand in the hand, and the jade bracelet will have the possibility of discoloration after hot water soaking, and it may also shrink due to thermal expansion and cold contraction.
and make it crack. However, the maintenance of jadeite requires regular hydration, and the jadeite can be soaked in water for a week to replenish water. In addition, when wearing jadeite, pay attention to the need to wash the jadeite regularly to remove dust or other impurities from its contamination.
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It is normal for black sesame seeds to fade moderately by soaking them in hot water, but if the color loss is severe, it is not normal for the sesame seeds to turn white, and they may be stained. Black sesame seeds will naturally fade, and it is normal to soak them in clean water. Because the anthocyanins contained in black sesame seeds will precipitate in the water, so that the water will appear a certain degree of black.
During the drying process of sesame seeds, black sesame seeds produce melanoidin, resulting in a darker color. And the longer it is left out, the more melanoid essence there is, so the less stale the black sesame seeds, the easier it is to turn the water black. In addition, the fading of black sesame seeds in soaked water has the factor that black sesame seeds are not fresh, which is also related to the length of soaking time.
And soaking in water can also distinguish the authenticity to a certain extent, because anthocyanins are present in organelles, and its dissolution is a slow process. The dyed black sesame dye is dyed on the surface, so the discoloration rate of soaking the two black sesame aqueous solutions is not the same.
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It's best not to soak in hot water, it also depends on how many degrees of water there is, and it doesn't matter if you can use warm water.
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Put the jadeite bracelet in water and boil, the real jadeite will not change, and the dyed jadeite will fade due to the increase in water temperature. Wipe the jadeite bracelet with alcohol, the real jadeite bracelet will not have any change, and the dyed jadeite bracelet will fade. The jadeite bracelet is irradiated with a flashlight, and the real jadeite bracelet can see the obvious color root, and the colored root of the dyed jadeite bracelet is floating.
Methods for identifying dyed jadeite:
1. Look at the color and color root of the jadeite itself.
Color root: No matter what color of jadeite, you can see a dot or strip structure inside it, and the dark part of the jadeite will gradually expand to the surrounding places, and it will gradually become lighter.
Not all jadeite is colored, such as hibiscus jadeite, dragon stone jadeite, and high-end green old pit glass is not, the color of these jadeite is almost the same as the background color, the color is very uniform, so the color root can not be seen.
There are also colored roots in dyed jadeite, but it is more special. Dyed jadeite is divided into two situations: one is that the structure of dyed jadeite itself is relatively loose, so it is dyed; Some are light-colored, acid-alkaline corrosion-hardened structures before dyeing, both methods are to make the color of jadeite more beautiful.
The reason why both of these are colored roots is that the internal arrangement structure of the jadeite changes, and the edges of the dyeing will be blurred, the transition will be unnatural, and the color will look as if it is floating on the surface. There is also some accumulation of dyeing matter inside, and the internal color is unnatural from dark to light, so you have to think about whether it is dyed.
2. Listen to the voice of jadeite.
The following methods are often used in the identification of jadeite bracelets:
Tie the jade bracelet with a rope and hang it, gently tap the two jade bracelets with each other, or gently tap it with an agate stick, if the sound you hear is crisp and pleasant, it is a real jadeite, if the sound is slightly dull, it is fake.
3. Observe with the help of tools.
a. Observation with a magnifying glass. Under a magnifying glass, the dyed jadeite is corroded by strong acid and injected with colored glue, so you will see traces of the internal color intertwined in a filamentous way. The surface of natural jadeite has an orange peel effect, and the surface of dyed jadeite will have acid etching lines formed by artificial reasons.
b. Ultraviolet fluorescence observation. Jadeite B goods and jadeite B + C goods have undergone pickling and glue injection or wax filling treatment, and will emit obvious ultraviolet fluorescence under ultraviolet fluorescence. Natural jadeite generally does not have ultraviolet fluorescence under ultraviolet fluorescence.
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Agate bracelets are not dyed.
There are three ways to bake jadeite: the first can be carried out by inorganic dyeing, which belongs to the metal ion penetration dyeing method, which uses the water-soluble inorganic salt solution of the metal to soak and bake for coloring; The second is the organic dyeing method, which uses dye artificial counterfeiting technology to simulate the natural skin color of jade; The third is to use an electric furnace to heat and oxidize, select the best jadeite material, put it into the heat treatment electric furnace and slowly warm it, and soak it in bleach water for a few hours after cooling.
The first type of jadeite roasting color: it can be carried out by inorganic dyeing, which belongs to the metal ion penetration dyeing method, which uses the water-soluble inorganic salt solution of the metal to soak and bake for coloring.
One of the types of jadeite roasting is carried out by using inorganic dyeing, which is also known as metal ion penetration dyeing, which uses a water-soluble inorganic salt solution of the metal to soak and bake for coloring.
The second is the organic dyeing method, which uses dye artificially counterfeiting technology to simulate the natural skin color of jade.
Organic dyeing, just like the textile dyeing process. The first process is the most common. Dyed jade is harmless and safe.
Dyeing, also known as "baked color", is the practice of using dyes to simulate the natural skin color of jade on jade that has no color or poor color.
The third type of roasting color is to use an electric furnace to heat and oxidize, select the best jadeite material, put it into a heat treatment electric furnace and slowly heat it, and soak it in bleach water for a few hours after cooling.
First of all, it is necessary to choose the jadeite material of brown, brown or brownish, which is naturally the best if it is good, and it is relatively easy to bake, and then clean up the oil stains on it, and then put it into the heat treatment electric furnace to slowly heat, this process is completely carried out in an oxidizing atmosphere. As the temperature continues to rise, its color will change, when the temperature reaches 200 degrees, it will appear "pig liver color", then immediately stop adding it to cool down, but for different textures of jadeite need time and temperature operation is also different. If you want a bright red color, soak the cooled jadeite in bleach for a few hours, and after it is fully chlorinated, you can increase the vividness of the red.
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This bracelet is visually the product of dyeing, and the harmful chemical components cannot be removed, and the water bubbles will not help. It is best not to wear it, first of all, it is not good for the body, and the pickled dyed bracelet contains a lot of heavy metals, which is harmful to the body. was seen by others that Void Qing was dyed, and he couldn't hang on his face.
Pickled jadeite releases toxins and radioactive elements, which can be harmful to the human body. Jadeite pickling is to soak the jadeite with strong acid to lose fiber, so that the weak parts are eroded and dissolved by strong acid, so that the internal structure of the jadeite is loose, and then the jadeite is injected with glue, so that the transparency of the jadeite has been significantly improved.
You can use 84 disinfectant pickling treatment of jadeite, you can also use white vinegar and a certain amount of water soaking, in general, pickled jadeite bracelet has high transparency, color distribution is very uniform, clarity is also high, all aspects will be better than before pickling.
The pickled jade bracelet will only hold the bracelet in contrast, so as not to cause harm to the human body. Pickling jadeite bracelet is to soak the jadeite with strong acid to make the weaker parts of the jadeite erosion and dissolve, so that the internal structure of the jadeite is loose, and then the glue is injected to greatly improve the transparency of the jadeite.
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Quite a bit.
Pickling is a cleaning method that can remove some oxide scale and rust, and can also change the structure of the jadeite and remove some impurities inside the jadeite. Normally, people will take some poor quality jadeite rough to pickle. Although pickled jadeite is not a fake, its condition is not good, and it is not recommended to buy it if you pursue collection and high quality.
And the way it is identified is actually not that difficult.
First of all, pickled jadeite can be identified from the weight. Jadeite will give people a comfortable feel and make people feel very weighty, but after pickled jadeite, its density will change, and the overall structure is not as tight as at the beginning, so the weight will be reduced. In short, its weight is absolutely impossible to be heavier than before pickling, if you buy a small piece of jadeite, you can carry an electronic scale or real jadeite for comparison.
Secondly, it can be identified by blemishes. Because the purpose of pickling is to remove impurities from the jadeite, it will give a perfect feeling without flaws. This can be carefully observed with a magnifying glass.
Natural jadeite has some slight flaws when viewed closely, and many of them are invisible to the naked eye. However, pickled jadeite will have bubbles, which is almost impossible for real jadeite.
The sound listening method that many people are using is also a good way to distinguish the real from the fake. As long as it is a crisp and pleasant sound, it means that it is a real jadeite, and if the sound is muddy and dull, it means that this jadeite is fake. This is also one of the most widely used.
The reason for the difference in sound is that pickled jadeite has too many chemical components, resulting in changes in the structure of jadeite.
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Whether or not a pickled jadeite bracelet will change color in a few years depends on a variety of factors, such as the degree of pickling, the quality of the jadeite, the wearing environment, etc. Generally speaking, jadeite bracelets that have been pickled may show discoloration after a certain period of time.
Pickling is a common jadeite treatment that can improve the transparency and color of jadeite. However, this treatment may make the structure of the jadeite bracelet unstable, which may cause the color of the jadeite bracelet to change over time, such as lightening, darkening, or the appearance of color spots.
In addition, jadeite bracelets will be affected by sweat, cosmetics, environmental pollution, etc. during wearing, and these factors may also cause the discoloration of jadeite bracelets.
To avoid discoloration of your jadeite bracelet, you can minimize the wearing time and avoid prolonged exposure to chemicals and strong sunlight. In addition, jadeite bracelets are regularly cleaned and maintained to keep their surface clean and shiny.
In short, there is no fixed time for pickling jadeite bracelets to change color in a few years, and the specific situation needs to be judged according to factors such as the quality of jadeite bracelets, the degree of pickling and the wearing environment.
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One month. Pickling is some bad business, the texture of the jadeite with strong acid to dirty, glue, damage the internal structure of the jadeite, although the adhesive paper can fill these gaps, but over time, the gum falls off, the jadeite will be mottled after a month will be yellow and discolored.
Pro, there will be changes, because the color inside is not natural, dyed, and the elements of the Tuansun change inside will be slowly lost in the future, especially after a high-temperature environment, such as bathing hot water or something, which is easier to change. Since dyed jadeite is treated with strong acids and alkalis, it is not recommended to wear it.
Pickled jadeite is not necessarily harmful to the human body, but it is certain that it is not helpful. After pickling jadeite, after a long time, the place where the gum has been injected will slowly change color, and even the phenomenon of burrs will appear.
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