ingredient information
Scandium
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Scandium is a soft, silvery transition element which occurs in rare minerals from Scandinavia. It develops a slightly yellowish or pinkish cast when exposed to air. Scandium tarnished in air and burn easily, once it has been ignited. It reacts with water to form hydrogen gas and will dissolve in many acids. Pure scandium is produced by heating scandium fluoride (ScF3) with calcium metal. Scandium can rarely be found in nature, as it occurs in very small amounts. Scandium is usually found only in two different kinds of ores. Thortveitite is the primary source of scandium with uranium mill tailings by-products also being an important source. World production amount to only 50 kg per year. There is no estimate of how much is potentially available. Scandium is only the 50th most abundant element on hearth, it is distributed widely, occurring in trace quantities in over 800 minerals. The blue color of the aquamarine variety of beryl is thought to be caused by scandium. Only about 3% of plants that were analysed for scandium shows its presence, and even those amounts were tiny, with vegetable having only 5 ppb although grass has 70 ppb. Scandium has no biological role. Only trace amounts reach the food chain, so the average person's daily intake is less than 0.1 microgram. Scadium is not toxic, although there have been suggestions that some of its compounds might be cancerogenic. Scandium is mostly dangerous in the working environment, due to the fact that damps and gasses can be inhaled with air. This can cause lung embolisms, especially during long-term exposure. Scandium can be a threat to the liver when it accumulates in the human body. Read more: http://www.lenntech.com/periodic/elements/sc.htm#ixzz0VuqsKcQn