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Toxicity Information About Cobalt

wallpapers News 2020-12-25
Cobalt, element symbol Co, silver-white ferromagnetic metal, the surface is silver-white and slightly pink, located in the 4th period, group VIII in the periodic table, atomic number 27, atomic weight 58.9332, close-packed hexagonal crystal, common valence is +2 , +3. Cobalt is a lustrous steel gray metal, relatively hard and brittle, ferromagnetic, and its magnetism disappears when heated to 1150°C. The valence of cobalt is +2 and +3.
 
Safety measures
 
Toxicological information
 
Frequent injection of cobalt preparations or exposure to excessive amounts of the original cobalt environment can cause cobalt poisoning. Children are sensitive to the toxicity of cobalt and should avoid doses exceeding 1 mg per kilogram of body weight. In the absence of vitamin B12 and protein and alcohol intake, toxicity increases, which is common among alcoholics.

 
Cobalt is a moderately active metal element with two valences: divalent and trivalent. Cobalt can enter the human body through the digestive tract and respiratory tract. Generally, the cobalt content in the body of an adult is 1.1 to 1.5 mg. In the plasma, inorganic cobalt is attached to albumin. It is initially stored in the liver and kidney, and then stored in the bone, spleen, pancreas, small intestine and other tissues. 14% of cobalt in the body is distributed in bones, 43% in muscle tissue, and 43% in other soft tissues.
 
Foods with higher cobalt content include beets, cabbage, onions, radishes, spinach, tomatoes, figs, buckwheat and cereals. The content of mushrooms can reach 61ug/100g.
 
Orally ingested cobalt is absorbed in the upper part of the small intestine and partly shares a carrier channel with iron. In plasma, it is attached to albumin. The absorption rate can reach 63%~93%, and the absorption of cobalt can be promoted when iron is lacking. Cobalt is mainly excreted through urine, and a small part is excreted through intestines, sweat, hair, etc., and generally does not accumulate in the body.

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