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The ideal formula of strontianite is SrCO 3, with molar mass 147.63 g, [4] but calcium (Ca) can substitute for up to 27% of the strontium (Sr) cations, and barium (Ba) up to 3.3%. [2] The mineral was named in 1791 for the locality, Strontian, Argyllshire, Scotland, where the element strontium had been discovered the previous year. [2]
About 8% by weight of cathode-ray tubes is strontium oxide, which has been the major use of strontium since 1970. [3] [4] Color televisions and other devices containing color cathode-ray tubes sold in the United States are required by law to use strontium in the faceplate to block X-ray emission (these X-ray emitting TVs are no longer in production).
Crude drugs are the dried, unprepared material of plant, animal or mineral origin, used for medicine. The study of these materials under the name Pharmakognosie was first developed in German-speaking areas of Europe, while other language areas often used the older term materia medica taken from the works of Galen and Dioscorides.
Strontium ranelate, a strontium(II) salt of ranelic acid, is a medication for osteoporosis marketed as Protelos or Protos by Servier. Studies indicate it can also slow the course of osteoarthritis of the knee. [ 1 ]
Most of the world's production of strontium used to be consumed in the production of cathode-ray tube (CRT) displays. The glass contained strontium and barium oxide to block X-rays. Consuming 75% of production, the primary use for strontium was in glass for colour television cathode-ray tubes, [56] where it prevented X-ray emission.
Strontium bromide – SrBr 2; Strontium carbonate – SrCO 3; Strontium chloride – SrCl 2; Strontium fluoride – SrF 2; Strontium hydroxide – Sr(OH) 2; Strontium iodide – SrI 2; Strontium nitrate – Sr(NO 3) 2; Strontium oxide – SrO; Strontium titanate – SrTiO 3; Strontium bicarbonate – Sr(HCO 3) 2; Strontium boride – SrB 6 ...
Strontium aluminate cement can be used as refractory structural material. It can be prepared by sintering of a blend of strontium oxide or strontium carbonate with alumina in a roughly equimolar ratio at about 1500 °C. It can be used as a cement for refractory concrete for temperatures up to 2000 °C as well as for radiation shielding. The use ...
A further place the strontian process came to be used was the Sugar Factory Rositz (in Rositz). [citation needed] Yet by 1883, the demand for strontianite had begun to shrink. First, it was replaced by another strontium mineral , that could be imported from England, in a cheaper way. Second, the prices for sugar decreased so much, that the ...