... MOQ:5MT 5.Formula:(NaPO3)6 Product DescriptionSodium Hexametaphosphate-SHMP Chemical formula: (NaPO3)6 CAS No.: 10124-56 ... Ba, Mg, Cu and Fe Application: 1. Technical grade: Used in such industries as oil field, paper-making, ... , detergent and soil analytical chemical reagent; 2. Food grade: Mainly used as additive agent, pH adjusting agent, ... 0.0039Water insoluble %≤0.050.06 68% industrial grade shmp