... such as Ca, Ba, Mg, Cu and Fe Application: 1. Technical grade: Used in such industries as oil field, paper-making, textile ... temperature agglomerant, detergent and soil analytical chemical reagent; 2. Food grade: Mainly used as additive agent, pH adjusting agent, fermenting agent ... as F%≤ 0.0039Water insoluble %≤0.050.06 68% industrial grade shmp