{"id":7870,"date":"2025-04-13T11:42:44","date_gmt":"2025-04-13T08:17:00","guid":{"rendered":"http:\/\/www.azarasaco.com\/?p=7870"},"modified":"2025-05-24T14:23:10","modified_gmt":"2025-05-24T10:53:10","slug":"calcium","status":"publish","type":"post","link":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/","title":{"rendered":"Calcium"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"7870\" class=\"elementor elementor-7870\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7360c02c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7360c02c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1c29215c\" data-id=\"1c29215c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-122b2e7a elementor-widget elementor-widget-text-editor\" data-id=\"122b2e7a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><span style=\"color: #003366;\"><strong>Calcium<\/strong><\/span><\/h4><p>Calcium is a chemical element in the periodic table with the chemical symbol Ca and is part of the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Alkaline_earth_metal\">alkaline earth metal<\/a> group. This metal, which is located in the second group and fourth row of the periodic table, has an atomic number of 20 and a mass number of 40. Its physical state is in the form of white crystals that melt at a temperature of 810 \u00b0 C. This metal is soluble in water and acid and produces hydroxide and salt.<\/p><p>Its most common compound on Earth is CaCO<sub>3<\/sub> in limestone. It is also found in gypsum (CaSO<sub>4<\/sub> .2H<sub>2<\/sub>O), anhydrite (CaSO<sub>4<\/sub>), fluorite (CaF<sub>2<\/sub>), and apatite [Ca5(PO<sub>4<\/sub>)<sub>3<\/sub>F]. The second element in the periodic table is less active than the alkali metals and other alkaline earth metals, such as beryllium and aluminum.<\/p><p>Among its industrial uses, we can mention its use in the paper industry and in the manufacture of cement. Its pure metal has limited applications. Small amounts of it are used in the steel industry and to make Ca-Pb alloys in car batteries.<\/p><p>Calcium carbonate (CaCO<sub>3<\/sub>) deposits damage pipes and heat exchangers. That&#8217;s why we control the calcium content in drinking and industrial water with water softeners.<\/p><h5><span style=\"color: #003366;\"><strong>How to measure<\/strong><\/span><\/h5><p>We use the titration method to measure calcium. The reason for choosing this method is that it is more accurate than other methods. We determine its amount by titration and EDTA. When we add (EDTA) or ethylenediaminetetraacetic acid to water containing calcium and <a href=\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/magnesium\/\">magnesium<\/a>, the magnesium ion precipitates by raising the <a href=\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/ph\/\">pH<\/a> of the water. In this way, we obtain the amount of calcium by titration.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-32b45c4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"32b45c4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d9fac59\" data-id=\"d9fac59\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-2c28623 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2c28623\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-09a5d89\" data-id=\"09a5d89\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-984dc77 elementor-widget__width-auto elementor-absolute e-transform elementor-widget elementor-widget-text-editor\" data-id=\"984dc77\" data-element_type=\"widget\" data-settings=\"{&quot;_position&quot;:&quot;absolute&quot;,&quot;_transform_translateX_effect&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_translateX_effect_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_translateX_effect_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_translateY_effect&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_translateY_effect_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_translateY_effect_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Share:<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13d2630 elementor-share-buttons--view-icon elementor-share-buttons--skin-boxed elementor-share-buttons--align-center elementor-share-buttons--shape-square elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"13d2630\" data-element_type=\"widget\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div\n\t\t\t\t\t\t\tclass=\"elementor-share-btn elementor-share-btn_linkedin\"\n\t\t\t\t\t\t\trole=\"button\"\n\t\t\t\t\t\t\ttabindex=\"0\"\n\t\t\t\t\t\t\taria-label=\"Share on linkedin\"\n\t\t\t\t\t\t>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-linkedin\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div\n\t\t\t\t\t\t\tclass=\"elementor-share-btn elementor-share-btn_whatsapp\"\n\t\t\t\t\t\t\trole=\"button\"\n\t\t\t\t\t\t\ttabindex=\"0\"\n\t\t\t\t\t\t\taria-label=\"Share on whatsapp\"\n\t\t\t\t\t\t>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-whatsapp\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div\n\t\t\t\t\t\t\tclass=\"elementor-share-btn elementor-share-btn_facebook\"\n\t\t\t\t\t\t\trole=\"button\"\n\t\t\t\t\t\t\ttabindex=\"0\"\n\t\t\t\t\t\t\taria-label=\"Share on facebook\"\n\t\t\t\t\t\t>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-facebook\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div\n\t\t\t\t\t\t\tclass=\"elementor-share-btn elementor-share-btn_telegram\"\n\t\t\t\t\t\t\trole=\"button\"\n\t\t\t\t\t\t\ttabindex=\"0\"\n\t\t\t\t\t\t\taria-label=\"Share on telegram\"\n\t\t\t\t\t\t>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-telegram\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-6ea69bc\" data-id=\"6ea69bc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad1f62a elementor-widget elementor-widget-spacer\" data-id=\"ad1f62a\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Calcium Calcium is a chemical element in the periodic table with the chemical symbol Ca and is part of the alkaline earth metal group. This metal, which is located in the second group and fourth row of the periodic table, has an atomic number of 20 and a mass number of 40. Its physical state [&hellip;]<\/p>","protected":false},"author":1,"featured_media":8073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,437],"tags":[493,499,501,497,495,481,485,489],"class_list":["post-7870","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-last-article-news-en","category-water-lab","tag-articles","tag-calcium","tag-magnesium","tag-total-dissolved-solids","tag-total-hardness","tag-water","tag-water-analysis","tag-water-laboratory"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Calcium - Azarasa company<\/title>\n<meta name=\"description\" content=\"Calcium carbonate deposits in pipes can cause damage, so the calcium content is determined by titration and EDTA methods.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Calcium - Azarasa company\" \/>\n<meta property=\"og:description\" content=\"Calcium carbonate deposits in pipes can cause damage, so the calcium content is determined by titration and EDTA methods.\" \/>\n<meta property=\"og:url\" content=\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/\" \/>\n<meta property=\"og:site_name\" content=\"Azarasa company\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-13T08:17:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-24T10:53:10+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"882\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@azarasaofficial\" \/>\n<meta name=\"twitter:site\" content=\"@azarasaofficial\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#article\",\"isPartOf\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/\"},\"author\":{\"name\":\"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/#\/schema\/person\/6f6f1ed4995c6228bd25ab100099cff3\"},\"headline\":\"Calcium\",\"datePublished\":\"2025-04-13T08:17:00+00:00\",\"dateModified\":\"2025-05-24T10:53:10+00:00\",\"mainEntityOfPage\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/\"},\"wordCount\":270,\"commentCount\":0,\"publisher\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/#organization\"},\"image\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#primaryimage\"},\"thumbnailUrl\":\"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg\",\"keywords\":[\"articles\",\"calcium\",\"magnesium\",\"total dissolved solids\",\"Total hardness\",\"water\",\"water analysis\",\"water laboratory\"],\"articleSection\":[\"last article news\",\"Water lab\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/\",\"url\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/\",\"name\":\"Calcium - Azarasa company\",\"isPartOf\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#primaryimage\"},\"image\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#primaryimage\"},\"thumbnailUrl\":\"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg\",\"datePublished\":\"2025-04-13T08:17:00+00:00\",\"dateModified\":\"2025-05-24T10:53:10+00:00\",\"description\":\"Calcium carbonate deposits in pipes can cause damage, so the calcium content is determined by titration and EDTA methods.\",\"breadcrumb\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#primaryimage\",\"url\":\"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg\",\"contentUrl\":\"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg\",\"width\":1000,\"height\":882,\"caption\":\"Calcium\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u062e\u0627\u0646\u0647\",\"item\":\"http:\/\/www.azarasaco.com\/en\/home-main-page\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calcium\"}]},{\"@type\":\"WebSite\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/#website\",\"url\":\"http:\/\/www.azarasaco.com\/en\/\",\"name\":\"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627\",\"description\":\"\u06cc\u06a9 \u0633\u0627\u06cc\u062a \u062f\u06cc\u06af\u0631 \u0628\u0627 \u0648\u0631\u062f\u067e\u0631\u0633 \u0641\u0627\u0631\u0633\u06cc\",\"publisher\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\/\/www.azarasaco.com\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/#organization\",\"name\":\"Azarasa company\",\"url\":\"http:\/\/www.azarasaco.com\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/#\/schema\/logo\/image\/\",\"url\":\"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2021\/02\/Layer-1.png\",\"contentUrl\":\"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2021\/02\/Layer-1.png\",\"width\":191,\"height\":106,\"caption\":\"Azarasa company\"},\"image\":{\"@id\":\"http:\/\/www.azarasaco.com\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/x.com\/azarasaofficial\"]},{\"@type\":\"Person\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/#\/schema\/person\/6f6f1ed4995c6228bd25ab100099cff3\",\"name\":\"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\/\/www.azarasaco.com\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/4e9d9e438b2f65cb1228ba9be96250f1?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/4e9d9e438b2f65cb1228ba9be96250f1?s=96&d=mm&r=g\",\"caption\":\"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627\"},\"sameAs\":[\"http:\/\/www.azarasaco.com\"],\"url\":\"http:\/\/www.azarasaco.com\/en\/author\/drmahdi\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Calcium - Azarasa company","description":"Calcium carbonate deposits in pipes can cause damage, so the calcium content is determined by titration and EDTA methods.","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":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/","og_locale":"en_US","og_type":"article","og_title":"Calcium - Azarasa company","og_description":"Calcium carbonate deposits in pipes can cause damage, so the calcium content is determined by titration and EDTA methods.","og_url":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/","og_site_name":"Azarasa company","article_published_time":"2025-04-13T08:17:00+00:00","article_modified_time":"2025-05-24T10:53:10+00:00","og_image":[{"width":1000,"height":882,"url":"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg","type":"image\/jpeg"}],"author":"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627","twitter_card":"summary_large_image","twitter_creator":"@azarasaofficial","twitter_site":"@azarasaofficial","twitter_misc":{"Written by":"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#article","isPartOf":{"@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/"},"author":{"name":"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627","@id":"http:\/\/www.azarasaco.com\/en\/#\/schema\/person\/6f6f1ed4995c6228bd25ab100099cff3"},"headline":"Calcium","datePublished":"2025-04-13T08:17:00+00:00","dateModified":"2025-05-24T10:53:10+00:00","mainEntityOfPage":{"@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/"},"wordCount":270,"commentCount":0,"publisher":{"@id":"http:\/\/www.azarasaco.com\/en\/#organization"},"image":{"@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#primaryimage"},"thumbnailUrl":"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg","keywords":["articles","calcium","magnesium","total dissolved solids","Total hardness","water","water analysis","water laboratory"],"articleSection":["last article news","Water lab"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#respond"]}]},{"@type":"WebPage","@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/","url":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/","name":"Calcium - Azarasa company","isPartOf":{"@id":"http:\/\/www.azarasaco.com\/en\/#website"},"primaryImageOfPage":{"@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#primaryimage"},"image":{"@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#primaryimage"},"thumbnailUrl":"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg","datePublished":"2025-04-13T08:17:00+00:00","dateModified":"2025-05-24T10:53:10+00:00","description":"Calcium carbonate deposits in pipes can cause damage, so the calcium content is determined by titration and EDTA methods.","breadcrumb":{"@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#primaryimage","url":"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg","contentUrl":"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2025\/04\/Calcium.jpg","width":1000,"height":882,"caption":"Calcium"},{"@type":"BreadcrumbList","@id":"http:\/\/www.azarasaco.com\/en\/1404\/01\/24\/calcium\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u062e\u0627\u0646\u0647","item":"http:\/\/www.azarasaco.com\/en\/home-main-page\/"},{"@type":"ListItem","position":2,"name":"Calcium"}]},{"@type":"WebSite","@id":"http:\/\/www.azarasaco.com\/en\/#website","url":"http:\/\/www.azarasaco.com\/en\/","name":"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627","description":"\u06cc\u06a9 \u0633\u0627\u06cc\u062a \u062f\u06cc\u06af\u0631 \u0628\u0627 \u0648\u0631\u062f\u067e\u0631\u0633 \u0641\u0627\u0631\u0633\u06cc","publisher":{"@id":"http:\/\/www.azarasaco.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"http:\/\/www.azarasaco.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"http:\/\/www.azarasaco.com\/en\/#organization","name":"Azarasa company","url":"http:\/\/www.azarasaco.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"http:\/\/www.azarasaco.com\/en\/#\/schema\/logo\/image\/","url":"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2021\/02\/Layer-1.png","contentUrl":"http:\/\/www.azarasaco.com\/wp-content\/uploads\/2021\/02\/Layer-1.png","width":191,"height":106,"caption":"Azarasa company"},"image":{"@id":"http:\/\/www.azarasaco.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/x.com\/azarasaofficial"]},{"@type":"Person","@id":"http:\/\/www.azarasaco.com\/en\/#\/schema\/person\/6f6f1ed4995c6228bd25ab100099cff3","name":"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"http:\/\/www.azarasaco.com\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/4e9d9e438b2f65cb1228ba9be96250f1?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4e9d9e438b2f65cb1228ba9be96250f1?s=96&d=mm&r=g","caption":"\u0634\u0631\u06a9\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0630\u0631\u0622\u0633\u0627"},"sameAs":["http:\/\/www.azarasaco.com"],"url":"http:\/\/www.azarasaco.com\/en\/author\/drmahdi\/"}]}},"_links":{"self":[{"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/posts\/7870","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/comments?post=7870"}],"version-history":[{"count":50,"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/posts\/7870\/revisions"}],"predecessor-version":[{"id":9890,"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/posts\/7870\/revisions\/9890"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/media\/8073"}],"wp:attachment":[{"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/media?parent=7870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/categories?post=7870"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.azarasaco.com\/en\/wp-json\/wp\/v2\/tags?post=7870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}