Active Manganese Dioxide MnO2 78% min H2O 4% max Fe 4%max PH 5-7% Tap Density (g/cm3 ) 1.8min Size pass 200mesh 90% min Do not pass 100mesh 3%max Open circuit voltage.V. 1.7%min Discharge time(final voltage 0.9v ) 2¦¸ continous discharge 170 mins min 3¦¸ continous discharge 400 mins min Packing 50kg woven bags For more information,please visit our web:www.xtmk.com or send us an email: daisy@xtmk.com