{"id":6915,"date":"2018-03-01T11:28:51","date_gmt":"2018-03-01T11:28:51","guid":{"rendered":"http:\/\/www.experimentoscientificos.es\/?page_id=6915"},"modified":"2018-03-01T12:32:04","modified_gmt":"2018-03-01T12:32:04","slug":"electrolisis-del-agua","status":"publish","type":"page","link":"https:\/\/www.experimentoscientificos.es\/en\/conductividad\/electrolisis-del-agua\/","title":{"rendered":"Water Electrolysis"},"content":{"rendered":"

The electrolysis of water<\/strong> is the phenomenon that occurs when an electric current is passed through water. By circulating electric current through water, it will decompose into the gases oxygen and hydrogen. Pure electrolysis of water would produce O2, H2, through oxidation-reduction reactions at each of the electrodes.<\/p>\n

Electrolysis of pure water, H2O<\/strong>requires a very high activation energy to break the tightly bound H20 molecules. However, the process of electrolysis<\/strong>The introduction of electrolytes into the water (such as NaCl salt) is a very common process in many applications. For example, by introducing common salt, with a very low power, we can obtain\u00a02NaCl + 2H2<\/sub>O \u2192 Cl2<\/sub>\u00a0+ H2<\/sub>\u00a0+ 2NaOH<\/strong><\/p>\n

APPLICATIONS OF ELECTROLYSIS<\/h2>\n

HYDROGEN GAS PRODUCTION<\/h3>\n
    \n
  • Currently 5% of the world's hydrogen gas is produced by electrolysis.<\/li>\n<\/ul>\n

    METAL PLATING<\/h3>\n

    The coating of metals is often carried out by means of electrolysis. Let's take for example the electrolysis of copper in water.<\/p>\n

    PURIFICATION OF SWIMMING POOLS BY SALINE CHLORINATION<\/h3>\n

    The purification of swimming pool water through salt chlorination is becoming more and more popular. This method consists of adding salt to the water and using a salt chlorinator to generate the chlorine needed to purify the pool. The technique behind the salt chlorinators is precisely the electrolysis of the water, which works as follows:<\/p>\n

      \n
    • Salt is added to the water and when it is circulated through a chlorinator, electrolysis is generated, producing chlorine. 2NaCl + 2H20 2NaOH + H2 + Cl2<\/strong><\/li>\n
    • Chlorine dissolves in water to form hypochlorous acid and sodium hypochlorite (as Na ions are also dissolved).\u00a0Cl2 + H20 + Na+ HClO + HCl + NaClO<\/strong><\/li>\n
    • Hypochlorous acid and sodium hypochlorite sterilise water.\u00a0HCO+NaClO HCl + H2O + NaOH<\/strong><\/li>\n
    • Once the water has been disinfected, the hydrochloric acid reacts with the caustic soda in a neutralisation reaction, giving again salt and water<\/strong> Na0H+HCl NaCl + H2O<\/strong><\/li>\n<\/ul>\n

      ASTRONAUTS: OXYGEN PRODUCTION ON INTERNATIONAL STATION<\/h3>\n

      Interestingly, the oxygen that purifies the air on the International Space Station is being produced through electrolysis of water. The hydrogen also produced by this method is also used to generate energy in a fuel cell.<\/p>","protected":false},"excerpt":{"rendered":"

      Electrolysis of water is the phenomenon that occurs when an electric current is passed through water. When an electric current is passed through water, it will decompose into the gases oxygen and hydrogen. Pure electrolysis of water would produce O2, H2, through the oxidation-reduction reactions in each of the two gases.<\/p>","protected":false},"author":1,"featured_media":0,"parent":2758,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"acf":[],"yoast_head":"\nElectr\u00f3lisis del Agua<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.experimentoscientificos.es\/en\/conductividad\/electrolisis-del-agua\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Electr\u00f3lisis del Agua\" \/>\n<meta property=\"og:description\" content=\"La electr\u00f3lisis del agua es el fen\u00f3meno que se produce al hacer circular corriente el\u00e9ctrica a trav\u00e9s del agua. Al hacer circular corriente el\u00e9ctrica a trav\u00e9s de agua, \u00e9sta se va a descomponer en los gases ox\u00edgeno e hidr\u00f3geno. La electr\u00f3lisis pura del agua, producir\u00eda O2, H2, mediante las reacciones de oxidaci\u00f3n-reducci\u00f3n en cada uno […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.experimentoscientificos.es\/en\/conductividad\/electrolisis-del-agua\/\" \/>\n<meta property=\"og:site_name\" content=\"Experimentos Cient\u00edficos\" \/>\n<meta property=\"article:modified_time\" content=\"2018-03-01T12:32:04+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/\",\"url\":\"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/\",\"name\":\"Electr\u00f3lisis del Agua\",\"isPartOf\":{\"@id\":\"https:\/\/www.experimentoscientificos.es\/#website\"},\"datePublished\":\"2018-03-01T11:28:51+00:00\",\"dateModified\":\"2018-03-01T12:32:04+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Inicio\",\"item\":\"https:\/\/www.experimentoscientificos.es\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Conductividad\",\"item\":\"https:\/\/www.experimentoscientificos.es\/conductividad\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Electr\u00f3lisis del Agua\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.experimentoscientificos.es\/#website\",\"url\":\"https:\/\/www.experimentoscientificos.es\/\",\"name\":\"Experimentos Cient\u00edficos\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.experimentoscientificos.es\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.experimentoscientificos.es\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.experimentoscientificos.es\/#organization\",\"name\":\"Experimentos Cient\u00edficos\",\"url\":\"https:\/\/www.experimentoscientificos.es\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.experimentoscientificos.es\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.experimentoscientificos.es\/wp-content\/uploads\/2025\/01\/cropped-logo-exp-grande-transparente_300.png\",\"contentUrl\":\"https:\/\/www.experimentoscientificos.es\/wp-content\/uploads\/2025\/01\/cropped-logo-exp-grande-transparente_300.png\",\"width\":300,\"height\":92,\"caption\":\"Experimentos Cient\u00edficos\"},\"image\":{\"@id\":\"https:\/\/www.experimentoscientificos.es\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Electr\u00f3lisis del Agua","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.experimentoscientificos.es\/en\/conductividad\/electrolisis-del-agua\/","og_locale":"en_GB","og_type":"article","og_title":"Electr\u00f3lisis del Agua","og_description":"La electr\u00f3lisis del agua es el fen\u00f3meno que se produce al hacer circular corriente el\u00e9ctrica a trav\u00e9s del agua. Al hacer circular corriente el\u00e9ctrica a trav\u00e9s de agua, \u00e9sta se va a descomponer en los gases ox\u00edgeno e hidr\u00f3geno. La electr\u00f3lisis pura del agua, producir\u00eda O2, H2, mediante las reacciones de oxidaci\u00f3n-reducci\u00f3n en cada uno […]","og_url":"https:\/\/www.experimentoscientificos.es\/en\/conductividad\/electrolisis-del-agua\/","og_site_name":"Experimentos Cient\u00edficos","article_modified_time":"2018-03-01T12:32:04+00:00","twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/","url":"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/","name":"Electr\u00f3lisis del Agua","isPartOf":{"@id":"https:\/\/www.experimentoscientificos.es\/#website"},"datePublished":"2018-03-01T11:28:51+00:00","dateModified":"2018-03-01T12:32:04+00:00","breadcrumb":{"@id":"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.experimentoscientificos.es\/conductividad\/electrolisis-del-agua\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Inicio","item":"https:\/\/www.experimentoscientificos.es\/"},{"@type":"ListItem","position":2,"name":"Conductividad","item":"https:\/\/www.experimentoscientificos.es\/conductividad\/"},{"@type":"ListItem","position":3,"name":"Electr\u00f3lisis del Agua"}]},{"@type":"WebSite","@id":"https:\/\/www.experimentoscientificos.es\/#website","url":"https:\/\/www.experimentoscientificos.es\/","name":"Experimentos Cient\u00edficos","description":"","publisher":{"@id":"https:\/\/www.experimentoscientificos.es\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.experimentoscientificos.es\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.experimentoscientificos.es\/#organization","name":"Experimentos Cient\u00edficos","url":"https:\/\/www.experimentoscientificos.es\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.experimentoscientificos.es\/#\/schema\/logo\/image\/","url":"https:\/\/www.experimentoscientificos.es\/wp-content\/uploads\/2025\/01\/cropped-logo-exp-grande-transparente_300.png","contentUrl":"https:\/\/www.experimentoscientificos.es\/wp-content\/uploads\/2025\/01\/cropped-logo-exp-grande-transparente_300.png","width":300,"height":92,"caption":"Experimentos Cient\u00edficos"},"image":{"@id":"https:\/\/www.experimentoscientificos.es\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.experimentoscientificos.es\/en\/wp-json\/wp\/v2\/pages\/6915"}],"collection":[{"href":"https:\/\/www.experimentoscientificos.es\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.experimentoscientificos.es\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.experimentoscientificos.es\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.experimentoscientificos.es\/en\/wp-json\/wp\/v2\/comments?post=6915"}],"version-history":[{"count":0,"href":"https:\/\/www.experimentoscientificos.es\/en\/wp-json\/wp\/v2\/pages\/6915\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.experimentoscientificos.es\/en\/wp-json\/wp\/v2\/pages\/2758"}],"wp:attachment":[{"href":"https:\/\/www.experimentoscientificos.es\/en\/wp-json\/wp\/v2\/media?parent=6915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}