Molybdenum Element Auxiliary Data and Its Function
Natural molybdenum ore mos is a soft black mineral with similar appearance and graphite. Before the end of the 18th century, both were sold in the european market under the name moly badenite. In 1779, mr sherler pointed out that graphite and molybadenite were two completely different substances. He found no effect of nitric acid on graphite, while reacting with molybadenite to obtain a chalky white powder that boils together with a alkali solution and crystallizes a salt. He thought the white powder was a metal oxide, which was strongly heated after mixing with charcoal and did not obtain the metal, but after co-heating with sulfur, the original molybadente was obtained. In 1782, elmo, the owner of a swedish mine, separated the metal from molybdenite, named molybdenum, with the elemental symbol mo. We translate it into molybdenum. It was recognized by Bezirius et al.
In the late 1950s, something strange happened at a New Zealand ranch. At that time, the years were not good, the grass withered low, some were about to die. But a very lush green pasture belt miraculously grew across one of the pastures. The careful herdsmen carefully observed the phenomenon and finally discovered the secret. It turned out that there was a molybdenum mine near the pasture, and the workers in the mine often crossed the pasture for the road, their boots sown with a lot of molybdenum ore, scattered on the grass, and the green grass belt grew. The matter attracted the attention of the experts. It is found that molybdenum is an indispensable trace element for crop growth. In the molybdenum-deficient soil, adding some molybdenum fertilizer can increase the nitrogen fixation ability of crops, make the crops grow better and increase the yield. More and more information has proved that molybdenum is also a necessary trace element in human body. There is very little molybdenum in the body, accounting for only a tenth of a million pounds. Although the molybdenum content is very small, it plays an important role in human life. It is known that human heart muscle contains a high proportion of molybdenum, molybdenum and some enzymes together to maintain the energy metabolism of the myocardium. Someone analyzed the hearts of dozens of people who died of myocardial infarction and found that their molybdenum content was lower than that of healthy people. This indicates that the amount of molybdenum in the human body directly affects the function of the cardiovascular system, but also shows that molybdenum has a special role in maintaining the normal function of the heart. Studies in recent years have found that molybdenum can also interrupt the synthesis of nitrosamines in the body, thereby preventing cancer. Experts have looked at areas with high rates of esophageal cancer and found that there is a high accumulation of carcinogens such as molybdenum, nitrate and nitrite in the soil, making it easy for residents to get esophageal cancer. After using ammonium molybdate fertilizer, the content of molybdenum in grain and vegetable increased obviously, and the incidence of esophageal cancer decreased obviously. Lack of molybdenum in the soil will cause nitrate accumulation in plants, under certain conditions, nitrate can be reduced to nitrite, and then produce nitrosamines. Nitrosamine is a strong carcinogen that can easily induce cancers of the digestive tract such as esophagus and colon. Studies have shown that an appropriate increase in the body's molybdenum content cannot only reduce or eliminate cancer in the digestive tract, but also improve blood circulation and prevent hypochromic anemia. Experts also found that molybdenum has a significant anti-caries effect. the incidence of dental caries in children is high in some molybdenum deficient areas or in people with molybdenum absorption disorders, and once the intake of molybdenum is increased, it can play a significant caries prevention effect. To this end, it is recommended to produce molybdenum-containing toothpaste to open up new ways to prevent and cure dental caries.
