3 thoughts on “What kind of material is nickel? Is it easy to fade with the accessories it made? Is it easy to be allergic?”
Vera
In fact, it depends on the sensitivity of personal skin. Generally speaking, it is not allergic. Only a few people can be allergic. The nickel plating in the market now. Most of them contain nickel plating. Most of them contain nickel. The color is bright, especially in the light. It is very beautiful and very popular. It is only a long time that the color will fade. There is no longer brightness. So it is generally more affordable.
Nickel nickels in clothing and clothing generally appear in the alloy. There are metal accessories in clothing products, such as buttons, zippers, rivets, metal earrings, necklaces, rings, etc. Some people have an allergic reaction to nickel. If they are exposed to nickel -containing accessories for a long time, they will cause serious stimulation to the skin. "The release of nickel has been limited by EC. For long -term gold -plated or non -gold -plated products that have been exposed to the skin for a long time, the number of daily emissions does not exceed 0.5ug/cm. , Its weekly emissions cannot exceed 0.2ug/cm2. Minerals: Nickel, what is the role of nickel, nickel, nickel n This of nickel n silver white metal, density 8.9 8.9 Grand/cm 3. Mel time at 1455 ° C, boiling point 2730 ° C. Hasted price 2 and 3. Hard quality, with magnetic and good plasticity. It has good corrosion resistance, not oxidized in the air, and strong alkali. Medium can be slowly dissolved, release of hydrogen and produce green nickel Ni2 ; no reaction to the oxidant solution includes nitric acid. Nickel is a medium -intensity reducing agent. The main creature type can be replaced, chelated or bonded with many material in the biological body. The discovery of nickel This in the crust is not small, greater than common metal lead, tin, etc. It is much less, and the melting point of nickel and iron is comparable, so it is destined to find it later than the iron. In 1751, the Klang Stat in Sweden, the grains after the surface of the red arsenic nickel ore became hot with the charcoal, and the charcoal was hot, and and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, heat the charcoal. Nickel was made. In 1952, there was a report that there was nickel in the animal body. Later, some people suggested that nickel is a necessary trace element for mammals. In 1973, some people proposed that nickels were the necessary trace elements for the first time. Study. The food source The foods containing nickel -containing rich foods are: chocolate, fruit, dried beans and cereals. Intestinal mucosa, the absorption and operation process is unclear. The absorption rate of nickel is about 3 % to 10 %. Increase. Nickel that absorbs human blood through the major ligand albumin in the serum to the whole body. Nickel is also combined with L-histidine and α-giant giant giant giant giant giant giant giant giant giant cosmoprotein in serum. 60 % of the nickel that absorbs blood is discharged from urine. The nickel content in sweat is high, and bile can also excrete a lot of nickel. There is a nickel nickel in some environments. It is a colorless transparent liquid. The boiling point is 43 ° C. It can quickly inhale the respiratory system from the respiratory system. A absorption, about 1/3 after entering the body about 1/3 after entering the body, it was discharged by exhalation in 6 hours. n physiological functions In higher animals and human body, the biochemical function of nickel has not yet been understood. But in vitro experiments, animal experiments and clinical observations provide valuable results. The affinity of thiamine scorched phosphate (coenctoase), pyromirum, pyrine, protein, and peptide proves that nickel is also combined with RNA and DNA. Sumid reduction, including Portugal Glucose-6-phosphate dehydrogenase, lactate dehydrogenase, isoidicate dehydrogenase, apple acid dehydrogenase and glutamate dehydrogenase. These enzymes participate in generating NADH, oxytoxy, titar carboxyl circulation and nitrogen release by amino acids. Moreover, the hepatocytes and mitochondrial structures are displayed when nickel deficiency, especially the internal mesh is irregular, and the mitochondrial oxidation function is reduced. . The blood nickel content of patients with anemia decreases, and iron absorption is reduced. Nickel has the effect of stimulating hematopoietic function. The physiological needs If in the diet intake of 70 to 260 μg/d daily in the diet, the amount of human needs is calculated based on animal experiments, and the amount may be 25-35 μg/d. Excessive manifestations It daily intake of soluble nickel 250mg will cause poisoning. Some people are more sensitive and intake of 600 μg to cause poisoning. According to animal experiments, chronic excess intake or excess exposure can lead to degeneration of myocardial, brain, lung, liver, and kidney degeneration. This nickel deficiency Animal experiments show that lack of nickels can grow slowly, and the genitals weaken.
In fact, it depends on the sensitivity of personal skin. Generally speaking, it is not allergic. Only a few people can be allergic.
The nickel plating in the market now. Most of them contain nickel plating. Most of them contain nickel. The color is bright, especially in the light. It is very beautiful and very popular. It is only a long time that the color will fade. There is no longer brightness. So it is generally more affordable.
Will not fade! Not allergic!
Nickel
nickels in clothing and clothing generally appear in the alloy. There are metal accessories in clothing products, such as buttons, zippers, rivets, metal earrings, necklaces, rings, etc. Some people have an allergic reaction to nickel. If they are exposed to nickel -containing accessories for a long time, they will cause serious stimulation to the skin.
"The release of nickel has been limited by EC. For long -term gold -plated or non -gold -plated products that have been exposed to the skin for a long time, the number of daily emissions does not exceed 0.5ug/cm. , Its weekly emissions cannot exceed 0.2ug/cm2.
Minerals: Nickel, what is the role of nickel, nickel, nickel n
This of nickel n silver white metal, density 8.9 8.9 Grand/cm 3. Mel time at 1455 ° C, boiling point 2730 ° C. Hasted price 2 and 3. Hard quality, with magnetic and good plasticity. It has good corrosion resistance, not oxidized in the air, and strong alkali. Medium can be slowly dissolved, release of hydrogen and produce green nickel Ni2 ; no reaction to the oxidant solution includes nitric acid. Nickel is a medium -intensity reducing agent. The main creature type can be replaced, chelated or bonded with many material in the biological body.
The discovery of nickel
This in the crust is not small, greater than common metal lead, tin, etc. It is much less, and the melting point of nickel and iron is comparable, so it is destined to find it later than the iron. In 1751, the Klang Stat in Sweden, the grains after the surface of the red arsenic nickel ore became hot with the charcoal, and the charcoal was hot, and and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, and the charcoal, heat the charcoal. Nickel was made. In 1952, there was a report that there was nickel in the animal body. Later, some people suggested that nickel is a necessary trace element for mammals. In 1973, some people proposed that nickels were the necessary trace elements for the first time. Study.
The food source
The foods containing nickel -containing rich foods are: chocolate, fruit, dried beans and cereals. Intestinal mucosa, the absorption and operation process is unclear. The absorption rate of nickel is about 3 % to 10 %. Increase. Nickel that absorbs human blood through the major ligand albumin in the serum to the whole body. Nickel is also combined with L-histidine and α-giant giant giant giant giant giant giant giant giant giant cosmoprotein in serum. 60 % of the nickel that absorbs blood is discharged from urine. The nickel content in sweat is high, and bile can also excrete a lot of nickel. There is a nickel nickel in some environments. It is a colorless transparent liquid. The boiling point is 43 ° C. It can quickly inhale the respiratory system from the respiratory system. A absorption, about 1/3 after entering the body about 1/3 after entering the body, it was discharged by exhalation in 6 hours. n physiological functions
In higher animals and human body, the biochemical function of nickel has not yet been understood. But in vitro experiments, animal experiments and clinical observations provide valuable results. The affinity of thiamine scorched phosphate (coenctoase), pyromirum, pyrine, protein, and peptide proves that nickel is also combined with RNA and DNA. Sumid reduction, including Portugal Glucose-6-phosphate dehydrogenase, lactate dehydrogenase, isoidicate dehydrogenase, apple acid dehydrogenase and glutamate dehydrogenase. These enzymes participate in generating NADH, oxytoxy, titar carboxyl circulation and nitrogen release by amino acids. Moreover, the hepatocytes and mitochondrial structures are displayed when nickel deficiency, especially the internal mesh is irregular, and the mitochondrial oxidation function is reduced.
. The blood nickel content of patients with anemia decreases, and iron absorption is reduced. Nickel has the effect of stimulating hematopoietic function.
The physiological needs
If in the diet intake of 70 to 260 μg/d daily in the diet, the amount of human needs is calculated based on animal experiments, and the amount may be 25-35 μg/d.
Excessive manifestations
It daily intake of soluble nickel 250mg will cause poisoning. Some people are more sensitive and intake of 600 μg to cause poisoning. According to animal experiments, chronic excess intake or excess exposure can lead to degeneration of myocardial, brain, lung, liver, and kidney degeneration.
This nickel deficiency
Animal experiments show that lack of nickels can grow slowly, and the genitals weaken.