4A Zeolite as raw material for detergent powder.Our 4A Zeolite quality always be stable and excellent and can replace some of the STPP as the raw meterial of detergent powder builder,and the price is lower than STPP. Pls check as below: -----------------------------4A Zeolite specification--------------------------------- Item Limits Test Method C.E.C Ca Ion exchangecapacity QB 1768-93 mgCaCO3(dry) 320¡À10mgCaCO3/g White grade(w=y) 97¡À0.5% GB/T13176.1 Grain Size(Micron meter) Q/QZH01-94,5.5 D50(Average grain size) 1.5-2.3um Sieve residue(wet sieve) <0.2% Q/QZH01-94,5.6 -------------------------------------------------------------------------------------------------------- jack zheng Sales Manager Xiamen Zhongzhao Imp.& Exp.Co.,Ltd Huiying Chemical Industry(Xiamen)Co.,Ltd 25A,Haiguang Bldg,No.33,Shuixian Rd.Xiamen,Fujian,China,361001 Tel:86-592-5311815,5311775,5311773 Fax:86-592-5311772 SKYPE: zheng2563810 E-mail: jack@xmzeolite.com http://www.xmzeolite.com