---Sodium Perborate MonohydrateSpec.: Active Oxygen:15%min Fe:15PPM max PH:9.5--10.5 Fineness:30--100 Packing:25kgs/wppbag ---Sodium Perborate Tetrahydrate Spec.:NaBO3 4H2O:96%min Active oxygen:10%min Fe:0.004%max PH:9.9--10.9 Packing:in 25kgs/wpp bag