We are manufacturer of zeolite 4a in china. 1. Item parameters Caldium exchanging capacity 295 min. Whiteness 96% min. Ph value 11 max Loi 22 max. 2. Application: Mainly used as detergent in washing, improving washing ability, decreasing the cost of raw material. 3. Properties: Innocuous, scentless and flavourless white powder with good free flowing, environment protective. Substitute for stpp. Improve washing ability by chelating to some metal ions in water such as ca2+, mg2+ and softening the water.