The present invention relates to the use of a surface-reacted calcium carbonate as anti-caking agent, wherein the surface-reacted calcium carbonate is a reaction product of natural ground or precipitated calcium carbonate with carbon dioxide and at least one acid in an aqueous medium, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source, and to a composition comprising said anti-caking agent, as well as to a method for the production of such a composition.本發明關於經表面反應碳酸鈣用作抗結塊劑的用途,其中經表面反應碳酸鈣為天然研磨或沉澱碳酸鈣與二氧化碳以及至少一種酸於水性介質中的反應產物,其中二氧化碳藉酸處理而原地形成及/或由外部來源供應,以及關於包含該抗結塊劑的組成物,以及關於用於製備此種組成物的方法。
