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The most common liquid metal to cause embrittlement is mercury, as it is a common contaminant in the processing of hydrocarbons in petroleum reservoirs. [19] The embrittling effects of mercury were first recognized by Pliny the Elder circa 78 AD. [20] Mercury spills present an especially significant danger for airplanes.
Mercury vapor is the primary hazard of elemental mercury. As a result, containers of mercury are securely sealed to avoid spills and evaporation. Heating of mercury, or of compounds of mercury that may decompose when heated, should be carried out with adequate ventilation in order to minimize exposure to mercury vapor.
The metallic mercury can then form an amalgam with the exposed aluminium. The amalgamated aluminium then is oxidized by water, converting the aluminium to aluminium hydroxide and releasing free metallic mercury. The generated mercury then cycles through these last two steps until the aluminium supply is exhausted. [5]
A mercury vacuum is a vacuum cleaner specifically designed to collect mercury (the metallic element, not the planet), for instance to clean up spills of the element. It is a requirement of the U.S. EPA that a mercury vacuum cleaner be used to clean up mercury spills (if an alternative method is used, a description of the method must be submitted to the EPA Administrator in a Notification of ...
Mercury poisoning is a type of metal poisoning due to exposure to mercury. [3] Symptoms depend upon the type, dose, method, and duration of exposure. [3] [4] They may include muscle weakness, poor coordination, numbness in the hands and feet, skin rashes, anxiety, memory problems, trouble speaking, trouble hearing, or trouble seeing. [1]
Mercury is a heavy metal that cycles through the atmosphere, water, and soil in various forms to different parts of the world. Due to this natural mercury cycle, irrespective of which part of the world releases mercury it could affect an entirely different part of the world making mercury pollution a global concern.
Mercury cell chlor-alkali production is a significant user of mercury and a source of mercury releases to the environment. The mercury used in this process acts as a catalyst in the chlorine production process. Best practices, such as proper waste management, can minimize the release of mercury.
At this point, tests proved that she had severe mercury poisoning. [5] [6] [9] Her blood and urinary mercury content were measured at 4,000 μg/L [7] and 234 μg/L, respectively—both many times their respective toxic thresholds of 200 μg/L and 50 μg/L (blood and urine reference ranges are 1 to 8 μg/L and 1 to 5 μg/L). [8]
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