Method for storing silica-based material, package produced with the method and use of package for packaging of silica-based products

Use of a package with a water-soluble undissolved silica-based material of which at least 50%, preferably at least 70% and more preferably at least 90%, calculated as SiO2 of dry matter, consists of SiO2 and/or hydrolysed SiO2, intended for preserving desired property or properties of said undissolved silica-based material wherein said package comprises an essentially closed housing enclosing said undissolved silica-based material immersed within a liquid phase media comprising water wherein

• a) said liquid phase is saturated with a water-soluble silica-based material, which is the same or different than said undissolved silica-based material, to such an extent that said undissolved silica based material does not at all or does not essentially dissolve into said liquid phase, or
• b) the proportion of the amount of said initially undissolved silica-based material to the amount of said liquid phase is such that said liquid phase will with time in an unopened package be saturated or essentially saturated by a dissolved portion of said water-soluble undissolved silica-based material, which said dissolved portion is less than 20%, preferably less than 5%, more preferably less than 1%
• for preserving said water-soluble undissolved silica-based material wherein said use of said water-soluble undissolved silica-based material after having been stored in said package further comprises dissolving said material in vivo.