the product is ideal phosphate-free addition that substitutes for STPP as a detergent builder ZEOLITE 4A A white powder ,non-toxic,odourless and good in flowability.With strong power of Caion exchange and compatibility and without pollution to environment ,the product is ideal phosphate-free addition that substitutes for STPP as a detergent builder.With high adsorptive capacity ,it is an optimum ...