... textile, dyeing, petroleum, chemistry, metallurgy and construction materials Sodium Hexametaphosphate(SHMP)Chemical formula :(NaPO3)6Molecular Weight:611.82Standard executed ... nourishing agent, quality improver, pH regulator, metal ions chelating agent, adhesive and leavening agent etc.Packing and storage:In ... ≤ 0.0039Water Insoluble matter % ≤0.050.0510Polymerization9-219-21 Sodium Hexametaphosphate