Search results
Results from the WOW.Com Content Network
Although aqua regia is an unstable mixture that continually gives off fumes containing free chlorine gas, this chlorine gas appears to have been ignored until c. 1630, when its nature as a separate gaseous substance was recognised by the Brabantian chemist and physician Jan Baptist van Helmont. [15] [en 1] Carl Wilhelm Scheele, discoverer of ...
Immediately following the use of chlorine gas by the Germans, instructions were sent to British and French troops to hold wet handkerchiefs or cloths over their mouths. Simple pad respirators similar to those issued to German troops were soon proposed by Lieutenant-Colonel N. C. Ferguson, the Assistant Director Medical Services of the 28th Division
Chlorine can be manufactured by the electrolysis of a sodium chloride solution , which is known as the Chloralkali process. The production of chlorine results in the co-products caustic soda (sodium hydroxide, NaOH) and hydrogen gas (H 2). These two products, as well as chlorine itself, are highly reactive.
The chlorine gas cautionary tale garnered over 21 million views and 2.7 million likes — but more importantly, it pointed out a common household cleaning mistake that poison experts say countless ...
It is the technology used to produce chlorine and sodium hydroxide (caustic soda), [1] which are commodity chemicals required by industry. Thirty five million tons of chlorine were prepared by this process in 1987. [2] In 2022, this had increased to about 97 million tonnes.
The strength of chlorine-releasing solutions, as well as their dosage in uses like water chlorination and pool sanitization, is usually expressed as mass concentration of "free chlorine" or "available chlorine". It is the mass of chlorine gas (Cl 2) that would yield the same oxidizing power as the product contained in (or applied to) a specific ...
Sarin, mustard gas, and chlorine have been used during the conflict. Numerous casualties led to an international reaction, especially the 2013 Ghouta attacks. A UN fact-finding mission was requested to investigate alleged chemical weapons attacks. In four cases the UN inspectors confirmed use of sarin gas. [147]
Cl 2 (g) + 2 NaOH(aq) → NaCl(aq) + NaClO(aq) + H 2 O. Hence, chlorine is simultaneously reduced and oxidized; this process is known as disproportionation. [citation needed] The process is also used to prepare the pentahydrate NaOCl·5H 2 O for industrial and laboratory use. In a typical process, chlorine gas is added to a 45–48% NaOH solution.