ZSM-5S Zeolite The ZSM-5 type zeolite produced by means of a template agent free hydrothermal crystallization method is featured with high relative crystallinity,wherein the relative crystallinity is no less than 90%,the SiO2/Al2O3 molar ration is no less than 25,and the Na2O is no more than 0.1%. ZSM-5S Quality Control Targets Item Unit Max Typical Max Analytical Method Relative crystallinity % 90 93 X-ray diffractometer Total specific surface m2/g 320 360 N2 Adsorption Microporous specific surface m2/g 270 280 N2 Adsorption Silica-alumina ratio / 32 35.5 38 XRF Na2O wt% 0.050 0.1 Flame Photometric Analysis SO42- wt% 0.25 0.4 XRF CI- ppm 70 Chemical Analysis LOI wt% 8 10 Gravimetric Analysis