{"id":1675,"date":"2025-07-07T17:45:27","date_gmt":"2025-07-07T09:45:27","guid":{"rendered":"http:\/\/localhost:801\/es\/?p=1675"},"modified":"2025-07-30T13:46:53","modified_gmt":"2025-07-30T05:46:53","slug":"de-icing-agent-cacl%e2%82%82-mgcl%e2%82%82-technical-selection-guide-and-product-parameters","status":"publish","type":"post","link":"https:\/\/www.xrdchemical.com\/es\/de-icing-agent-cacl%e2%82%82-mgcl%e2%82%82-technical-selection-guide-and-product-parameters\/","title":{"rendered":"De-icing Agent (CaCl\u2082\/MgCl\u2082) Technical Selection Guide and Product Parameters"},"content":{"rendered":"\n

Chemical and Physical Properties<\/h2>\n\n\n\n

Purity Levels:<\/strong><\/p>\n\n\n\n

Magnesium Chloride<\/th>Calcium Chloride<\/th><\/tr><\/thead>
Industrial-grade magnesium chloride typically assays at 94-98% MgCl\u2082<\/td>Deicing-grade calcium chloride is usually 77-80% CaCl\u2082 (as dihydrate)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \n
  • Higher purity reduces insoluble content that can clog application equipment<\/li>\n<\/ul>\n\n\n\n

    Moisture Content:<\/strong><\/p>\n\n\n\n

    Magnesium Chloride<\/th>Calcium Chloride<\/th><\/tr><\/thead>
    Magnesium chloride hexahydrate contains approximately 47% water by weight<\/td>Calcium chloride dihydrate contains about 30% water<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      \n
    • Affects storage stability and application characteristics<\/li>\n<\/ul>\n\n\n\n

      Bulk Density:<\/strong><\/p>\n\n\n\n

      Magnesium Chloride<\/th>Calcium Chloride<\/th><\/tr><\/thead>
      55-65 lbs\/ft\u00b3 (loose bulk density)<\/td>50-60 lbs\/ft\u00b3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \n
      • Important for storage capacity calculations and spreader calibration<\/li>\n<\/ul>\n\n\n\n

        Particle Size Distribution:<\/strong><\/p>\n\n\n\n

          \n
        • Standard grades range from fine powders to 5mm pellets<\/li>\n\n\n\n
        • Larger particles provide better broadcast spread pattern and slower dissolution<\/li>\n\n\n\n
        • Smaller particles work faster but may drift in windy conditions<\/li>\n<\/ul>\n\n\n\n

          Performance Specifications<\/h2>\n\n\n\n

          Ice Melting Capacity:<\/strong><\/p>\n\n\n\n

            \n
          • Measured as pounds of ice melted per pound of product at standard conditions<\/li>\n<\/ul>\n\n\n\n
            Magnesium Chloride<\/th>Calcium Chloride<\/th><\/tr><\/thead>
            ~175 lbs ice\/lb product at 20\u00b0F<\/td>~250 lbs ice\/lb product at 20\u00b0F<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

            Freezing Point Depression:<\/strong><\/p>\n\n\n\n

              \n
            • Saturated solution freezing points:<\/li>\n<\/ul>\n\n\n\n
              Magnesium Chloride<\/th>Calcium Chloride<\/th><\/tr><\/thead>
              -15\u00b0F (-26\u00b0C)<\/td>-25\u00b0F (-32\u00b0C)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

              Viscosity (for Liquid Products):<\/strong><\/p>\n\n\n\n

              Magnesium chloride brine (30%)<\/th>Calcium chloride brine (32%)<\/th><\/tr><\/thead>
              ~15 cP at 20\u00b0C<\/td>~10 cP at 20\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                \n
              • Affects spray pattern and equipment selection<\/li>\n<\/ul>\n\n\n\n

                Application Parameters<\/h2>\n\n\n\n

                Pre-treatment Brine Concentrations:<\/strong><\/p>\n\n\n\n

                Magnesium Chloride<\/th>Calcium Chloride<\/th><\/tr><\/thead>
                23-27% by weight for anti-icing<\/td>28-32% by weight<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                  \n
                • Higher concentrations risk crystallization in cold weather<\/li>\n<\/ul>\n\n\n\n

                  Application Temperature Limits:<\/strong><\/p>\n\n\n\n

                  Liquid Magnesium Chloride<\/th>Liquid Calcium Chloride<\/th><\/tr><\/thead>
                  Effective to 0\u00b0F (-18\u00b0C) as pre-treatment<\/td>Effective to -10\u00b0F (-23\u00b0C)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

                  Coverage Rates:<\/strong><\/p>\n\n\n\n

                    \n
                  • See table in the previous section for solid application rates<\/li>\n\n\n\n
                  • Liquid applications typically 30-50 gallons per lane mile for anti-icing<\/li>\n<\/ul>\n\n\n\n

                    Quality Control Indicators<\/h2>\n\n\n\n

                    Impurity Limits:<\/strong><\/p>\n\n\n\n

                      \n
                    • Heavy metals (Pb, Cd, As): <10 ppm each for environmental safety<\/li>\n\n\n\n
                    • Insolubles: <0.5% by weight for equipment protection<\/li>\n\n\n\n
                    • Sulfates: <0.1% to prevent concrete interaction<\/li>\n<\/ul>\n\n\n\n

                      Stability Indicators:<\/strong><\/p>\n\n\n\n

                        \n
                      • Caking tendency: Measured by angle of repose (preferably <40 degrees)<\/li>\n\n\n\n
                      • Moisture absorption: Weight gain under controlled humidity<\/li>\n<\/ul>\n\n\n\n

                        Safety Data:<\/strong><\/p>\n\n\n\n

                          \n
                        • Both materials are rated as irritants for skin and eye contact<\/li>\n\n\n\n
                        • Dust control is important during handling to prevent respiratory irritation<\/li>\n<\/ul>\n\n\n\n

                          Typical Product Specifications for Deicing-Grade Magnesium and Calcium Chloride<\/em><\/h2>\n\n\n\n
                          Parameter<\/th>Magnesium Chloride Spec<\/th>Calcium Chloride Spec<\/th>Test Method<\/th><\/tr><\/thead>
                          Assay (as dihydrate)<\/td>\u226594% MgCl\u2082<\/td>77-80% CaCl\u2082<\/td>ASTM E534<\/td><\/tr>
                          Moisture Content<\/td>\u22642.0% (anhydrous)<\/td>\u22640.5% (anhydrous)<\/td>ASTM D4377<\/td><\/tr>
                          Bulk Density (loose)<\/td>55-65 lbs\/ft\u00b3<\/td>50-60 lbs\/ft\u00b3<\/td>ASTM B527<\/td><\/tr>
                          Particle Size (granular)<\/td>90% 1-3 mm<\/td>90% 1-4 mm<\/td>ASTM E11 sieves<\/td><\/tr>
                          Ice Melting Capacity<\/td>\u2265175 lbs ice\/lb<\/td>\u2265250 lbs ice\/lb<\/td>SHRP H-205.8<\/td><\/tr>
                          Freezing Point (saturated)<\/td>\u2264-15\u00b0F (-26\u00b0C)<\/td>\u2264-25\u00b0F (-32\u00b0C)<\/td>ASTM D1177<\/td><\/tr>
                          Heavy Metals (each)<\/td>\u226410 ppm<\/td>\u226410 ppm<\/td>EPA 6010\/7471<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

                          Chemical and Physical Properties Purity Levels: Magnesi […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[54,66],"class_list":["post-1675","post","type-post","status-publish","format-standard","hentry","category-blogs","tag-calcium-chloride","tag-magnesium-chloride","entry"],"_links":{"self":[{"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/posts\/1675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/comments?post=1675"}],"version-history":[{"count":3,"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/posts\/1675\/revisions"}],"predecessor-version":[{"id":1678,"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/posts\/1675\/revisions\/1678"}],"wp:attachment":[{"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/media?parent=1675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/categories?post=1675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xrdchemical.com\/es\/wp-json\/wp\/v2\/tags?post=1675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}