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Mercury(II) sulfide, HgS, adopts the cinnabar structure described, and one additional structure, i.e. it is dimorphous. [16] Cinnabar is the more stable form, and is a structure akin to that of HgO : each Hg center has two short Hg−S bonds (each 2.36 Å ), and four longer Hg···S contacts (with 3.10, 3.10, 3.30 and 3.30 Å separations).
The essential refining method was to turn the mercury into gas and recondense it to quicksilver. The sulfur would burn and convert to sulfur dioxide; the waste rock associated with the ore is known as calcine, or burnt rock, would be dumped near the lake shore, out of the way of the mining works.
Ellis sold his interest to Isaac Sanger of Dallas in 1905, who operated the Texas Almaden Mining Company, but Sanger's operation was unable to survive. [2] W.K. Ellis operated the Ellis Mine from 1917 to 1919, refining 894 flasks at the mine site. When mercury prices dropped at the end of World War I, Ellis sold to William Burcham in 1919.
This is a list of Superfund sites in Oklahoma designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contaminations. [1]
A part of a mercury extraction plant of the New Idria Quicksilver Mining Company. The New Idria Mercury Mine was claimed in 1854, with the first brick furnace built in 1857. During the California Gold Rush, mercury was the key component to extract gold from ores.
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The Kiekhaefer Mercury company began in 1939 when engineer Carl Kiekhaefer purchased a small outboard motor company in Cedarburg, Wisconsin. Kiekhaefer's original intention for the Kiekhaefer Corporation was to make magnetic separators for the dairy industry. The purchase included 300 defective outboard motors.
Because of the high toxicity of mercury, both the mining of cinnabar and refining for mercury are hazardous and historic causes of mercury poisoning. [53] In China, prison labor was used by a private mining company as recently as the 1950s to develop new cinnabar mines.