{"id":107470,"date":"2026-06-10T14:40:32","date_gmt":"2026-06-10T09:10:32","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=107470"},"modified":"2026-06-10T14:40:32","modified_gmt":"2026-06-10T09:10:32","slug":"caustic-soda","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/caustic-soda\/","title":{"rendered":"Caustic Soda"},"content":{"rendered":"<h2><b>Caustic Soda Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The Environment (Protection) Second Amendment Rules, 2025 require caustic soda plants using membrane cell technology to pass a fish-survival test for wastewater toxicity.\u00a0<\/span><\/p>\n<h2><b>About Caustic Soda<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Caustic soda, also known <\/span><b>as sodium hydroxide<\/b><span style=\"font-weight: 400;\">, is one of India\u2019s most widely used industrial chemicals.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Other names:<\/b><span style=\"font-weight: 400;\"> Lye, soda lye, and sodium hydrate.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is produced by the <\/span><b>electrolysis of aqueous solutions of sodium chloride<\/b><span style=\"font-weight: 400;\"> (brine) or by reacting naturally occurring sodium carbonate with calcium hydroxide.<\/span><\/li>\n<\/ul>\n<h2><b>Properties of Caustic Soda<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This <\/span><b>compound is an alkali<\/b><span style=\"font-weight: 400;\"> \u2013 a type of base that can neutralize acids and is soluble in water.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">At <\/span><b>room temperature<\/b><span style=\"font-weight: 400;\">, sodium hydroxide is a <\/span><b>white crystalline<\/b><span style=\"font-weight: 400;\"> odorless solid that absorbs moisture from the air<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">When <\/span><b>dissolved in water<\/b><span style=\"font-weight: 400;\"> or neutralized with acid it <\/span><b>liberates substantial heat.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Its <\/span><b>solution appears as a colorless<\/b><span style=\"font-weight: 400;\"> liquid and more dense than water.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Its contact may severely irritate skin, eyes, and mucous membranes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is <\/span><b>corrosive to metals and tissue.<\/b><\/li>\n<\/ul>\n<h2><b>Applications of Caustic Soda<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is used in <\/span><b>industries such as soap<\/b><span style=\"font-weight: 400;\">, detergents, paper, textiles, aluminium, petrochemicals and water purification.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is also used in <\/span><b>processing cotton fabric<\/b><span style=\"font-weight: 400;\">, laundering and bleaching, metal cleaning and processing, oxide coating, electroplating, and electrolytic extracting.<\/span><\/li>\n<\/ul>\n<p><b>Source: <\/b><strong><a href=\"https:\/\/www.downtoearth.org.in\/water\/new-rule-requires-fish-survival-test-for-caustic-soda-industry-wastewater\" target=\"_blank\" rel=\"nofollow noopener\">DTE<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Caustic Soda is also known as sodium hydroxide, is one of India\u2019s most widely used industrial chemicals. Read more about Caustic Soda, Properties, Applications, Latest News.<\/p>\n","protected":false},"author":24,"featured_media":107485,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[8053],"class_list":{"0":"post-107470","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-caustic-soda","9":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/107470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=107470"}],"version-history":[{"count":3,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/107470\/revisions"}],"predecessor-version":[{"id":107548,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/107470\/revisions\/107548"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/107485"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=107470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=107470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=107470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}