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The largest reservoir of chlorine resides in the lithosphere, where 2.2 × 10 22 kg of global chlorine is found in Earth's mantle. [2] Volcanic eruptions will sporadically release high levels of chlorine as HCl into the troposphere , but the majority of the terrestrial chlorine flux comes from seawater sources mixing with the mantle.
Can produce a variety of toxic effects in humans and other animals; also toxic to various microorganisms. [11] sodium: 11: 5: Essential to animals and plants in many ways, such as osmoregulation and transmission of nerve impulses. [11] Essential to energy metabolism of some bacteria, particularly extremophiles. [64]
In 2002 in Missouri, a flex hose ruptured during unloading a train car at a chemical plant, releasing approximately 16,900 pounds (7,700 kg) of chlorine gas. 67 persons were injured. [1] In 2004 in Macdona, Texas, a freight train accident released 9,400 US gallons (36,000 L; 7,800 imp gal) of chlorine gas and other toxic chemicals. At least 40 ...
The chlorine atoms, 7 in the case of heptachlor, 8 in chlordane, and 9 in the case of nonachlor, surround and stabilize the cyclodiene ring and thus these compounds are referred to as cyclodienes. Other members of the cyclodiene family of organochlorine insecticides are aldrin and its epoxide, dieldrin , as well as endrin , which is a ...
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Chlorine is a strong oxidant that rapidly kills many harmful micro-organisms. Because chlorine is a toxic gas, there is a danger of a release associated with its use. This problem is avoided by the use of sodium hypochlorite, which is a relatively inexpensive solution used in household bleach that releases free chlorine when dissolved in water ...
In a paper published in 1894, it was formally proposed to add chlorine to water to render it "germ-free". Two other authorities endorsed this proposal and published it in many other papers in 1895. [4] Early attempts at implementing water chlorination at a water treatment plant were made in 1893 in Hamburg, Germany.