... ,Ba,Mg,Cu and Fe;It is a fine agent for water treatment.Specification: itemsIndustrial gradeFood gradeTotal phosphate (P2O5)68 ... , it is mainly used as a water softening agent in solution for printing, dyeing, and boiler; Diffusant in papermaking; ... and soil analytical chemistry reagent. For food grade, additive agent,PH adjusting agent and fermentation agent, and nourishment.Packing:25kgs net paper ...