{"id":7021,"date":"2025-04-07T16:20:00","date_gmt":"2025-04-07T14:20:00","guid":{"rendered":"https:\/\/www.mismumi.com\/en\/?page_id=7021"},"modified":"2025-02-20T11:54:28","modified_gmt":"2025-02-20T10:54:28","slug":"phosphorous-acid","status":"publish","type":"page","link":"https:\/\/www.mismumi.com\/en\/phosphorous-acid\/","title":{"rendered":"Phosphorous acid, formulation, uses, and applications of iIts chemical formula"},"content":{"rendered":"<p>The <strong>phosphorous acid<\/strong> has a formulation for industrial and agricultural uses. It is widely sold around the world and, together with hypophosphorous acid, belongs to the group of diprotic chemical compounds or acids.<br \/>\n<div id=\"toc_container\" class=\"toc_white no_bullets\"><p class=\"toc_title\">Contents<\/p><ul class=\"toc_list\"><li><a href=\"#Phosphorous-Acid-what-is-it\"><span class=\"toc_number toc_depth_1\">1<\/span> Phosphorous Acid, what is it<\/a><\/li><li><a href=\"#Uses\"><span class=\"toc_number toc_depth_1\">2<\/span> Uses<\/a><\/li><li><a href=\"#Relation-with-hypophosphorous-acid\"><span class=\"toc_number toc_depth_1\">3<\/span> Relation with hypophosphorous acid<\/a><\/li><li><a href=\"#Sale-of-phosphorous-acid\"><span class=\"toc_number toc_depth_1\">4<\/span> Sale of phosphorous acid<\/a><\/li><\/ul><\/div>\n<\/p><aside class=\"adsini\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><!-- ah_inicio_articulo --><ins class=\"adsbygoogle ah-inicio-articulo\" style=\"display:block\" data-ad-client=\"ca-pub-9582652217436894\"\r\n     data-ad-slot=\"2508209597\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/aside>\n<h2><span id=\"Phosphorous-Acid-what-is-it\">Phosphorous Acid, what is it<\/span><\/h2>\n<p>It is a chemical compound with properties that allow it to function as a weak reducing agent, slightly weaker than hypophosphorous acid. It is useful in the preparation of phosphorous compounds, where it acts as a necessary element for their manufacture.<\/p>\n<p>Its chemical structure, within the <strong>diprotic<\/strong> group, facilitates the donation of 2 protons H+ per molecule when present in an aqueous solution. The <strong>phosphorous acid has the following chemical and physical properties<\/strong>:<br \/>\n<img loading=\"lazy\" class=\"aligncenter wp-image-98948 size-full\" src=\"https:\/\/www.mismumi.com\/en\/wp-content\/uploads\/phosphorous-formulation.jpg\" alt=\"Chemical formula of phosphorous acid or formulation\" width=\"336\" height=\"280\" title=\"\"><\/p>\n<ul>\n<li><strong>Formula of phosphorous acid or formulation: <\/strong>H3PO3.<\/li>\n<li><strong>Density: <\/strong>1651 kg\/m3 or 1651 g\/cm3.<\/li>\n<li><strong>Molar mass: <\/strong>82 g\/mol.<\/li>\n<li><strong>Boiling point: <\/strong>200 \u00b0C or 473 K.<\/li>\n<li><strong>Melting point: <\/strong>73.6 \u00b0C or 347 K.<\/li>\n<li><strong>pH: <\/strong>1.3.<\/li>\n<li><strong>pKa: <\/strong>7.7.<\/li>\n<li><strong>Soluble in water: <\/strong>310 g\/100 ml.<\/li>\n<li><strong>Soluble in alcohol: <\/strong>yes.<\/li>\n<li><strong>Color: <\/strong><\/li>\n<li>Used as a weak reducing agent.<\/li>\n<\/ul>\n<h2><span id=\"Uses\">Uses<\/span><\/h2>\n<ul>\n<li>Water treatment.<\/li>\n<li>Production of mineral compounds.<\/li>\n<li>Treatment for plants and vegetables.<\/li>\n<li>Reducing agent in chemical analysis.<\/li>\n<li>Vinyl additive.<\/li>\n<\/ul>\n<p>It has various applications, but the <strong>most common uses of phosphorous acid<\/strong> are for water treatment. This chemical compound makes it possible to produce phosphites, which is also the reaction needed to manufacture potassium phosphite.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-98949 size-full\" src=\"https:\/\/www.mismumi.com\/en\/wp-content\/uploads\/phosphorous-acid-uses.jpg\" alt=\"Phosphorous acid uses\" width=\"720\" height=\"440\" srcset=\"https:\/\/www.mismumi.com\/en\/wp-content\/uploads\/phosphorous-acid-uses.jpg 720w, https:\/\/www.mismumi.com\/en\/wp-content\/uploads\/phosphorous-acid-uses-336x205.jpg 336w\" sizes=\"(max-width: 720px) 100vw, 720px\" title=\"\"><br \/>\nAdditionally, one of its characteristics is serving as a <strong>reducing agent for chemical analysis<\/strong>, with phosphites and phosphorous being very commonly used elements.<\/p>\n<p>Other uses and applications of phosphorous acid are in the industrial sector, where it is part of the range of additives necessary for manufacturing vinyl chloride. This is a colorless, highly unstable gas, but it is currently added to produce PVC. Therefore, phosphorous is also part of this type of material, widely used in homes, commercial premises, and all types of infrastructure that require plastic materials as well as metal coatings.<\/p>\n<h2><span id=\"Relation-with-hypophosphorous-acid\">Relation with hypophosphorous acid<\/span><\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-98950 size-full\" src=\"https:\/\/www.mismumi.com\/en\/wp-content\/uploads\/hypophosphorous-acid.jpg\" alt=\"Hypophosphorous acid\" width=\"336\" height=\"280\" title=\"\"><br \/>\nIt is also a reducing agent, but unlike phosphorous acid, it is a <strong>strong reducing agent<\/strong>. It is necessary for electroplating without electrolysis or mold making.<\/p><div class=\"clear\"><\/div><center><aside class=\"ads2\"><ins class=\"adsbygoogle\" style=\"display:block; text-align:center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-9582652217436894\" data-ad-slot=\"1797353553\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/aside><\/center><div class=\"clear\"><\/div>\n<p>It is known as hypophosphite or HPA and phosphinic acid, and the <strong>hypophosphorous acid has the formula<\/strong>: H3PO2.<\/p>\n<p>It is classified as an oxacid of phosphorus and a hydroxophosphine oxide.<\/p>\n<p>The chemical characteristics and properties of hypophosphorous acid often cause a chemical reaction when it comes into contact with another strong reducing agent, reducing it to phosphine.<\/p><div class=\"clear\"><\/div><center><!-- ah_3_ads --><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-9582652217436894\" data-ad-slot=\"7212672277\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/aside><\/center><div class=\"clear\"><\/div>\n<p>When mixed with silver nitrate, it precipitates, forming a white compound that abruptly turns dark.<\/p>\n<p>At the same time, it also reacts with other strong acids such as sulfuric acid. With this, it decomposes, forming sulfur dioxide and <a href=\"https:\/\/www.mismumi.com\/azufre-organico-mineral-propiedades-usos\/\">sulfur for industrial uses<\/a>.<\/p>\n<p>Its handling should be done with caution, as indicated in the safety data sheet for hypophosphorous acid, especially if mercury II oxide and mercury nitrate are present, as it is easy for them to react violently, causing an explosion.<\/p>\n<p>The relationship between hypophosphorous acid and phosphoric acid is that the former decomposes to form hydrogen phosphide, also called phosphine, and <a href=\"https:\/\/www.mismumi.com\/en\/phosphoric-acid\/\">orthophosphoric acid<\/a>. To achieve this, the temperature must be raised to a range between 130 and 140 \u00b0C.<\/p>\n<p>It is a very corrosive acid for organic tissues. Skin, mucous membranes, and eyes must be protected to avoid permanent damage and sequelae from handling it.<\/p>\n<h2><span id=\"Sale-of-phosphorous-acid\">Sale of phosphorous acid<\/span><\/h2>\n<p>Because it is a corrosive agent, it is necessary to go to chemical industries and online stores with chemical products. Nowadays, buying and shipping it is much easier than a few years ago. The sale of phosphorous acid is worldwide, so you won\u2019t have problems acquiring it in your locality or placing an online order.<\/p>\n<\/p><aside class=\"ads\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><!-- ah_fin_articulo --><ins class=\"adsbygoogle ah-fin-articulo\" style=\"display:inline-block\" data-ad-client=\"ca-pub-9582652217436894\" data-ad-slot=\"4055871191\"><\/ins><script> (adsbygoogle = window.adsbygoogle || []).push({}); <\/script><\/aside><aside class=\"ads-relacionado\"><center><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><!-- mismumi_relacionado --><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-format=\"autorelaxed\" data-ad-client=\"ca-pub-9582652217436894\" data-ad-slot=\"2966766890\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/center><\/aside><div class=\"clear\"><\/div>","protected":false},"excerpt":{"rendered":"<p>The phosphorous acid has a formulation for industrial and agricultural uses. It is widely sold around the world and, together with hypophosphorous acid, belongs to the group of diprotic chemical compounds or acids. Phosphorous&#46;&#46;&#46;<\/p>\n","protected":false},"author":7,"featured_media":98949,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.mismumi.com\/en\/wp-json\/wp\/v2\/pages\/7021"}],"collection":[{"href":"https:\/\/www.mismumi.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.mismumi.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.mismumi.com\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mismumi.com\/en\/wp-json\/wp\/v2\/comments?post=7021"}],"version-history":[{"count":0,"href":"https:\/\/www.mismumi.com\/en\/wp-json\/wp\/v2\/pages\/7021\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mismumi.com\/en\/wp-json\/wp\/v2\/media\/98949"}],"wp:attachment":[{"href":"https:\/\/www.mismumi.com\/en\/wp-json\/wp\/v2\/media?parent=7021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}