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In August 1921, von Sochocky was forced from the presidency, and the company was renamed the United States Radium Corporation, [3] Arthur Roeder became the president of the company. [4] In Orange, where radium was extracted from 1917 to 1926, the U.S. Radium facility processed half a ton of ore per day. [3]
Naturally occurring radioactive materials (NORM) and technologically enhanced naturally occurring radioactive materials (TENORM) consist of materials, usually industrial wastes or by-products enriched with radioactive elements found in the environment, such as uranium, thorium and potassium and any of their decay products, such as radium and radon. [1]
The Standard Chemical Company (SCC) of Canonsburg, Pennsylvania, was the first successful commercial producer of radium. SCC operated the radium refining mill from 1911 to 1922 on a 19-acre (77,000 m2) plot of land. The company supplied radium to the United States Radium Corporation for use in their watch dials. [1]
The National Radium Institute (NRI) was an organization incorporated in 1913 to extract radium from US domestic sources for use in cancer treatment and possible industrial use and in the process to develop more efficient methods of radium extraction.
Radium is a chemical element; it has symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rather than oxygen) upon exposure to air, forming a black surface layer of radium nitride (Ra 3 N 2).
Radium-226 is a product of Uranium-238 decay, and is the longest-lived isotope of radium with a half-life of 1601 years; next longest is Radium-228, a product of Thorium-232 breakdown, with a half-life of 5.75 years. [8] Radon (Rn) is a naturally occurring product of the decay of uranium or thorium.
Friedrich Oskar Giesel (20 May 1852 – 13 November 1927, known as Fritz) was a German organic chemist.During his work in a quinine factory in the late 1890s, he started to work on the at-that-time-new field of radiochemistry and started the production of radium.
The cleanup operation for the Goiânia accident [20] was difficult both because the source containment had been opened, and the radioactive material was water-soluble.. In 1983, a different incident in Mexico wherein cobalt-60 was spilled in an otherwise similar exposure led to a very different pattern of contamination, since the cobalt in such a source is normally in the form of cobalt metal ...