HYDROUS LAYERED SILICATES AND DETERGENT COMPOSITIONS CONTAINING THE SAME

摘要

Hydrous layered silicates represented by the following compositional formula: (M<1>x/n, Na1-x/n)2SiyO2y+1.zH2O (wherein M<1> represents at least one metal selected among lithium, potassium and alkaline earth metals; n represents the valency of metal M<1>; and x, y and z are numbers, respectively, in the ranges of 0 Na-solid nuclear magnetic resonance spectrometry. The silicates have high cation-exchange capacities and rates and suitable properties as water softeners and so forth, thus being suitable for water softeners, water treatments, detergents, and so forth.