In its pure form, chlorine is a gas. It is one of the deadliest gases, but also one of the most useful! In nature, chlorine is part of compounds such as salt (natrium chloride).
\nPure chlorine was originally prepared by a Swedish chemist called Karl Scheele in 1774. It is now made by passing a solution of salt through an electric current.<\/p>\n
The first poison gas used in World War I was pure chlorine. The Germans used it on 22 April 1915. Then they and their allies used a variety of gases, all made from chlorine compounds.<\/p>\n
During the Second World War, the Allies and their enemies had huge stockpiles of chlorine-based gases and other substances, but did not use them.<\/p>\n
However, despite being so poisonous and dangerous, chlorine is useful to human health. Chlorine kills microbes and is an important part of antibacterials and disinfectants.<\/p>\n
Most water purification systems contain chloride to kill any bacteria that survive the treatments. Only four-fifths chloride is used per 1,000,000 parts of water. This percentage is not harmful to humans, although the water may have a certain taste.<\/p>\n
Chloride can be turned into a liquid by pressing or freezing. In its liquid form, chloride is transported in metal cylinders and also in tank-type machines.<\/p>\n
Chlorine is used for bleaching and the preparation of bleaching powder. Under normal conditions, it is used in the papermaking process.<\/p>\n
It is also used in the manufacture of dyes and, along with oxygen and potassium, is part of fireworks and some types of matches.<\/p>\n
Carbon tetrachloride, a chloride derivative, is a non-explosive cleaning agent used in certain types of fire extinguishers. Chloride itself is also an important part of modern antiseptics.<\/p>\n","protected":false},"excerpt":{"rendered":"
In its pure form, chlorine is a gas. It is one of the deadliest gases, but also one of the most useful! In nature, chlorine is part of compounds such as salt (natrium chloride). Pure chlorine was originally prepared by a Swedish chemist called Karl Scheele in 1774. It is now made by passing a […]<\/p>\n","protected":false},"author":1,"featured_media":14,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-13","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-international"],"_links":{"self":[{"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/posts\/13","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/comments?post=13"}],"version-history":[{"count":1,"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/posts\/13\/revisions"}],"predecessor-version":[{"id":15,"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/posts\/13\/revisions\/15"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/media\/14"}],"wp:attachment":[{"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/media?parent=13"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/categories?post=13"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.refu.ro\/en\/wp-json\/wp\/v2\/tags?post=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}