... Ca,Ba,Mg,Cu and Fe;It is a fine agent for water treatment.Specification: itemsIndustrial gradeFood gradeTotal phosphate (P2O5)68% ... and building material industry, it is mainly used as a water softening agent in solution for printing, dyeing, and boiler; Diffusant in ... grade, it is mainly used as additive agent,PH adjusting agent and fermentation agent, and nourishment.Packing:25kgs net paper bags ...