... USE:water treatment,detergent,oil field,printing,dyeing Sodium Hexametaphosphate 68 % SHMP (tech grade)Chemical formula: (NaPO3)6Molecular weight:611. ... 77Technical Specifications: SpecificationsSuperior qualityFirst-gradeQualified productsMain Content (P2O5) % ≥68.067.065.0Non-reactive phosphate %≤7.58.010.0Water insoluble ... woven bags or as per order request. Sodium Hexametaphosphate 68