Silica xerogel is tough and hard; it is more solid than common household\u00a0gels\u00a0like\u00a0gelatin\u00a0or\u00a0agar. It is a naturally occurring mineral that is purified and processed into either granular or beaded form. As a\u00a0desiccant, it has an average pore size of 2.4 nanometers and has a strong affinity for water molecules.<\/p>\n
Silica gel is most commonly encountered in everyday life as beads in a small (typically\u00a02 x 3 cm)\u00a0paper packet. In this form, it is used as a\u00a0desiccant\u00a0to control local\u00a0humidity\u00a0to avoid\u00a0spoilage\u00a0or degradation of some goods. Since such packets may resemble sachets of sugar or salt and because silica gel may have added toxic chemical indicators (see below), silica gel packets usually bear warnings for the user not to eat the contents.<\/p>\n","protected":false},"excerpt":{"rendered":"
Silica gel<\/strong>\u00a0is a\u00a0granular,\u00a0vitreous,\u00a0porous\u00a0form of\u00a0silicon dioxide\u00a0made synthetically from\u00a0sodium silicate. Silica gel contains a nano-porous silica micro-structure, suspended inside a liquid. Most applications of silica gel require it to be dried, in which case it is called silica xerogel. For practical purposes, silica gel is often interchangeable with silica xerogel.<\/p>\n CAS: 7631-86-9<\/p>\n","protected":false},"featured_media":6186,"template":"","meta":[],"product_brand":[],"product_cat":[199,209,201,202],"product_tag":[],"class_list":{"0":"post-13194","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-all-products","7":"product_cat-construction-industry","8":"product_cat-car-and-machine-chemicals","9":"product_cat-household-chemicals","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-variable","17":"has-default-attributes","18":"rtwpvg-product"},"yoast_head":"\n