... as Ca, Ba, Mg, Cu and Fe Application: 1. Technical grade: Used in such industries as oil field, paper-making, textile ... agglomerant, detergent and soil analytical chemical reagent; 2. Food grade: Mainly used as additive agent, pH adjusting agent, fermenting ... /20 feet container No.SpecificationsIndustrial GradeFood Grade1Total phosphate, as P2O5%≥68.068.02Inactive phosphate, as P2O5%≤7.57.53Iron, as ...