Inorganic water-softening bead

摘要

A non-water dispersible water-softening bead is disclosed having from 80 to 90% sodium alumino silicate and from 10 to 20% low density polyethylene. The bead has a diameter of between 200 and 1000 microns and a calcium capacity of at least 200 mg calcium carbonate/g. The sodium alumino silicate has a silica to aluminum oxide molar ratio of between 2:1 and 4:1 and a sodium oxide to aluminum oxide molar ratio of between 0.8:1 and 1.2:1.