Chromium is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odourless, tasteless, and malleable.
Chromium is mined as chromite (FeCr2O4) ore. About two-fifths of the chromite ores and concentrates in the world are produced in South Africa, while Kazakhstan, India, Russia, and Turkey are also sizable producers. Untapped chromite deposits are plentiful, but geographically concentrated in Kazakhstan and southern Africa.
Kazakhstan
Chromium is passivated by oxygen, forming a thin protective oxide outside layer with an additional one element such as nickel or iron. This layer is a spinel buildings only a few atoms thick and is very dense, preventing diffusion of oxygen into the basal material. (In iron or plain carbon steels the oxygen migrates into the basal material.) Chromium is ordinarily plated on top of a nickel layer which may first have been copper plated. Chromium, unlike metals such as iron and nickel, does not suffer from hydrogen embrittlement. It does suffer from nitrogen embrittlement and hence no level chromium alloy has ever been developed. Below, the pourbaix diagram can be seen. It is prominent to understand that the diagram only displays the thermodynamic data and it does not display any details of the rates of reaction.
Key Functions of Chromium
Chromium is an valuable trace mineral occurring in very small estimate in the blood and varied tissue. It is a mineral that acts directly on cell membrane. It is complicated in amino acid transport and breakdown of glycogen and lipids.
The estimate of chromium in the body in varied tissue decline with age, depending on the dietary intake. This decline may contribute to glucose intolerance of the elderly. It has also been found that practice and a high consumption of sugar increase the bodies need for chromium.
Other Function of Chromium in the Body:
Chromium is very prominent in order for insulin to function. Insulin is an prominent hormone that regulates the metabolism of carbohydrates (sugars), fats, and proteins.
Chromium help preclude hardening and thickening of arteries.
adequate use of chromium can dramatically help to form muscles and sell out fat, in increasing to significantly contributing to the allowance of cholesterol and to operate the metabolism of blood sugars.
Chromium helps to increase energy, suppress the desire for sugar and flours, since it causes the existing insulin to work efficiently, which is a good for those citizen suffering in diabetes.
Food Sources of Chromium
Beef, Beer (some brands), Black strap molasses, Brewer's yeast, Brown rice, Calves' liver, Cereals, Cheese, Chicken breast, Chicken legs, Corn and corn oil, Dairy products, Dried beans, Dulse, Eggs, Fish and seafood, Fresh fruit, Fresh vegetables, Meat, Mushrooms, Potatoes with skin, Whole grains and bread
Herb Sources of Chromium: Catnip, Horsetail, Licorice, Nettle, Oat straw, Red clover, Sarsaparilla, Wild yam, Yarrow
Recommended Daily Usage
No lawful Rdas.
Us Guidelines say 50-200iu daily is a safe, adequate range.
Nutritional protection
Deficiency of chromium - A shortage of chromium may also lead to anxiety, fatigue, glucose intolerance (particularly in citizen with diabetes), inadequate metabolism of amino acids, and an increased risk of arteriosclerosis.
Toxicity and symptoms of high intake - Because chromium is not verily absorbed (chromium picolinate is the best absorbed) and since it is lost verily in the urine, toxicity does not seem to be a problem, but dermatitis has been noted, as well gastrointestinal ulcers as well as liver and kidney damage if taken in large dosages over prolonged periods. If you are diabetic, do not supplement with chromium, as it can make your blood sugar levels drop. Some citizen have reported a skin rash and lightheadedness - if this occurs, stop taking the supplement and consult your curative practitioner.My next record entitled "The Function of Iron in our Life" will eye the role of Iron in good nutrition.
See you on the Beaches of the World,
Kevin McNabb
The Function of Chromium in Our LifeTags : todays world news headlines
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