{"id":42102,"date":"2025-03-18T13:50:15","date_gmt":"2025-03-18T12:50:15","guid":{"rendered":"https:\/\/staging.thomar.de\/pharma-food\/silica-gel\/"},"modified":"2026-10-01T17:38:43","modified_gmt":"2026-10-01T15:38:43","slug":"silica-gel","status":"publish","type":"page","link":"https:\/\/www.thomar.de\/en\/pharma-food\/silica-gel\/","title":{"rendered":"Silica gel"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"42102\" class=\"elementor elementor-42102 elementor-6688\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61cb4fc9 e-flex e-con-boxed e-con e-parent\" data-id=\"61cb4fc9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5f43b404 elementor-widget elementor-widget-breadcrumbs\" data-id=\"5f43b404\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/www.thomar.de\/en\/\">Home<\/a><\/span><\/span><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-96be52e e-con-full e-flex e-con e-parent\" data-id=\"96be52e\" data-element_type=\"container\" data-e-type=\"container\" id=\"product-intro\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1a05af91   elementor-widget elementor-widget-heading\" data-id=\"1a05af91\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"header-category\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\"><span>Silica Gel<\/span><br \/><span class=\"small\">Silicon dioxide (SiO\u2082)<\/span><\/span><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bbabba5 e-flex e-con-boxed e-con e-parent\" data-id=\"bbabba5\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a8373ac elementor-widget elementor-widget-text-editor\" data-id=\"3a8373ac\" data-element_type=\"widget\" data-e-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<p>Silica gel is a classic desiccant for dehumidifying the ambient air within packaging, for example of medicines and dietary supplements. It adsorbs moisture (water vapor) and binds it due to its large specific surface area. It is odorless and colorless and resistant to most substances, except hydrofluoric acid and strong alkalis.  <\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-309e0de6 e-flex e-con-boxed e-con e-parent\" data-id=\"309e0de6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-1f02a373 e-con-full e-flex e-con e-child\" data-id=\"1f02a373\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-70832ab5 elementor-widget elementor-widget-heading\" data-id=\"70832ab5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Silica gel, silica gel or silica gel? <br>Industry-specific terminology.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43c3a131 elementor-widget elementor-widget-text-editor\" data-id=\"43c3a131\" data-element_type=\"widget\" data-e-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<p>As a desiccant, the English spelling silica gel has become established. Alternatively, the German spelling Silikagel is also used, for example in the chemical industry. In the pharmaceutical industry and in the laboratory sector, silica gel is also known by the term Kieselgel.  <\/p><p>Important to know: It is the same material.<\/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-1653b5a7 elementor-widget elementor-widget-heading\" data-id=\"1653b5a7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Properties of silica gel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f57d8c4 set-flex-basis-1 elementor-position-inline-start elementor-view-default elementor-mobile-position-block-start elementor-widget elementor-widget-icon-box\" data-id=\"6f57d8c4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 256 256\"><rect width=\"256\" height=\"256\" fill=\"none\"><\/rect><circle cx=\"128\" cy=\"128\" r=\"96\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/circle><polyline points=\"108 100 132 84 132 176\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/polyline><\/svg>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<h3 class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tAdsorption\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<p class=\"elementor-icon-box-description\">\n\t\t\t\t\t\tSilica gel is an adsorbent, not to be confused with absorbent. Adsorption refers to the process in which molecules adhere to the surface of a solid without penetrating its structure. That's why silica gel retains its hard and noticeably dry state even when it is saturated.   \t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76483344 set-flex-basis-1 elementor-position-inline-start elementor-view-default elementor-mobile-position-block-start elementor-widget elementor-widget-icon-box\" data-id=\"76483344\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 256 256\"><rect width=\"256\" height=\"256\" fill=\"none\"><\/rect><circle cx=\"128\" cy=\"128\" r=\"96\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/circle><path d=\"M105.9,94.7A24,24,0,0,1,152,104a23.6,23.6,0,0,1-4.1,13.4h0L104,176h48\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/path><\/svg>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<h3 class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tHygroscopicity\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<p class=\"elementor-icon-box-description\">\n\t\t\t\t\t\tSilica gel is hygroscopic, which means it attracts water vapor. The water molecules are adsorbed from a relative ambient humidity of approx. 10% by the silanol groups located on the silica gel surface. \t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60f15122 set-flex-basis-1 elementor-position-inline-start elementor-view-default elementor-mobile-position-block-start elementor-widget elementor-widget-icon-box\" data-id=\"60f15122\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 256 256\"><rect width=\"256\" height=\"256\" fill=\"none\"><\/rect><circle cx=\"128\" cy=\"128\" r=\"96\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/circle><path d=\"M104,84h48l-28,40a28,28,0,1,1-19.8,47.8\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/path><\/svg>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<h3 class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tWater Absorption Capacity\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<p class=\"elementor-icon-box-description\">\n\t\t\t\t\t\tThe water absorption capacity of silica gel is strongly influenced by the manufacturing process and is typically between 30 and 40%. When used as a desiccant, it depends on the relative humidity of the environment. \t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44984f4 elementor-widget__width-initial set-flex-basis-1 elementor-position-inline-start elementor-view-default elementor-mobile-position-block-start elementor-widget elementor-widget-icon-box\" data-id=\"44984f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 256 256\"><rect width=\"256\" height=\"256\" fill=\"none\"><\/rect><circle cx=\"128\" cy=\"128\" r=\"96\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/circle><polyline points=\"124 76 100 144 148 144\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/polyline><line x1=\"148\" y1=\"112\" x2=\"148\" y2=\"176\" fill=\"none\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"8\"><\/line><\/svg>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<h3 class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tRegeneration\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<p class=\"elementor-icon-box-description\">\n\t\t\t\t\t\tSilica gel can be completely regenerated by heating to 120\u00b0C and is then ready to absorb again.\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5b127d02 e-con-full e-flex e-con e-child\" data-id=\"5b127d02\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-65522ba elementor-widget elementor-widget-image\" data-id=\"65522ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"499\" src=\"https:\/\/www.thomar.de\/wp-content\/uploads\/2025\/03\/petri-dish-1-scaled-1-1024x639.webp\" class=\"attachment-large size-large wp-image-6535\" alt=\"Orange Silica Gel in Petri Dish\" srcset=\"https:\/\/www.thomar.de\/wp-content\/uploads\/2025\/03\/petri-dish-1-scaled-1-1024x639.webp 1024w, https:\/\/www.thomar.de\/wp-content\/uploads\/2025\/03\/petri-dish-1-scaled-1-1500x936.webp 1500w, https:\/\/www.thomar.de\/wp-content\/uploads\/2025\/03\/petri-dish-1-scaled-1-64x40.webp 64w, https:\/\/www.thomar.de\/wp-content\/uploads\/2025\/03\/petri-dish-1-scaled-1-300x187.webp 300w, https:\/\/www.thomar.de\/wp-content\/uploads\/2025\/03\/petri-dish-1-scaled-1-768x479.webp 768w, https:\/\/www.thomar.de\/wp-content\/uploads\/2025\/03\/petri-dish-1-scaled-1-1536x958.webp 1536w, https:\/\/www.thomar.de\/wp-content\/uploads\/2025\/03\/petri-dish-1-scaled-1.webp 1920w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-595e5f1c elementor-hidden-desktop elementor-hidden-tablet e-flex e-con-boxed e-con e-parent\" data-id=\"595e5f1c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6e018130 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6e018130\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5f7d858a e-flex e-con-boxed e-con e-parent\" data-id=\"5f7d858a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-49469f8e elementor-widget elementor-widget-heading\" data-id=\"49469f8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Silica gel orange - silica gel with color change<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d382448 elementor-widget elementor-widget-text-editor\" data-id=\"6d382448\" data-element_type=\"widget\" data-e-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<p>Silica gel orange is identical in function to white silica gel. However, it was produced with a dye that serves as an indicator to visualize saturation.  <\/p><p>In the dry state, the silica gel has the color orange; when saturated with water vapor, it then changes its color (color change). The color change can be to green, violet, or white. For our desiccant products, we use a silica gel that changes to white.  <\/p><p>It is used with transparent containers, or in semi-transparent bags or bags with viewing windows. This enables the condition to be assessed through a simple visual inspection and, if necessary, the desiccant to be replaced.  <\/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-187387a7 elementor-widget elementor-widget-heading\" data-id=\"187387a7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Difference to molecular sieve<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58cdf869 elementor-widget elementor-widget-text-editor\" data-id=\"58cdf869\" data-element_type=\"widget\" data-e-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<p>The water absorption capacity is higher for silica gel than for molecular sieve and it increases with increasing relative humidity. However, silica gel only begins water vapor adsorption from approx. 10% relative humidity. It can be regenerated at significantly lower temperatures. In terms of price, silica gel offers a clear advantage compared to molecular sieve.   <\/p><p>Especially in contact with pharmaceutical products, the highest quality and safety in application are essential. At ThoMar, you always receive the right desiccant with all necessary certificates, no matter what you choose. <\/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-7dede56 elementor-widget elementor-widget-heading\" data-id=\"7dede56\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"humidity-control\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Humidity regulator \/ humidity control<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-739d9f9a elementor-widget elementor-widget-text-editor\" data-id=\"739d9f9a\" data-element_type=\"widget\" data-e-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<p>Furthermore, there are special types of silica-gel-based products known as humidity regulators or humidity control packs. They are used to protect products that require a certain moisture content. The desiccant must not dry out the product and must be able to absorb excess moisture. The silica gel is conditioned to the desired value for this purpose.   <\/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\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Silica Gel(Silica Gel) Silica gel is a classic desiccant for dehumidifying the ambient air within packaging, for example of medicines and dietary supplements. It adsorbs moisture (water vapor) and binds it due to its large specific surface area. It is odorless and colorless and resistant to most substances, except hydrofluoric acid and strong alkalis. Silica [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":41941,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"anwendungsbereiche":[],"class_list":["post-42102","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.5 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Silica gel | ThoMar<\/title>\n<meta name=\"description\" content=\"When is silica gel the right solution for pharmaceutical and nutraceutical packaging? Learn more about properties, variants, and the difference to molecular sieve.\" \/>\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.thomar.de\/en\/pharma-food\/silica-gel\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Silica gel\" \/>\n<meta property=\"og:description\" content=\"When is silica gel the right solution for pharmaceutical and nutraceutical packaging? 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