... Grade:96%min 2.Agriculture Grade:98%min 3.Industrial Grade:99.6%min 4.Integrity,quality,team effectiveness 1). Property:Potassium Nitrate is ... colorless crystal or white powder.It is easily soluble in the water,and the liquid ammonia but ... — — Iron % Max 0.003 0.01 — 0.003 Potassium Oxide % Min — — 46.0 44 Nitrogen % Min — — 13.5 13.5 Sodium % Max — — — 0 ...