... and building material industry,and used as a water softening agent in solution for printing,dyeing, and boiler, as ... diffusant in papermaking; Retarding agent,floating agent, dispersing medium, high temperatureagglomerant, detergent and soil analytical ... ; 2)Food grade: Mainly used as additive agent, pH adjusting agent,fermenting agent, and nourishment, etc. 4.Packing: 25kg ...