Zeolite 4A (Sodium Aluminosilicate)
Zeolite 4A is a white powder that is used as a builder in manufacturing of detergent powder. It also works as a water softener in detergent powder. Zeolite can produce demineralized water through calcium ion exchange, remove and prevent the deposition of dirt. So it is widely used to replace sodium tripolyphosphate as detergent auxiliary in order to reduce the environmental impact of the detergent. Zeolite 4A is a molecular sieve and it is widely used in the drying, refining and purification of liquids and gases. It can absorb water and other molecules with a critical diameter less than 4 Å such as NH3, H2S, SO2, CO2, C2H5OH, C2H6, and C2H4.